C# 数据操作工具类
CREATE PROCEDURE [dbo].[RecordFromPage] @SelectList VARCHAR(max), @TableSource VARCHAR(100), @SearchCondition VARCHAR(max), @OrderExpression VARCHAR(1000), @PageIndex INT = 1, @PageSize INT = 10, @TotalCount int output AS BEGIN IF @SelectList IS NULL OR LTRIM(RTRIM(@SelectList)) = '' BEGIN SET @SelectList = '*' END PRINT @SelectList SET @SearchCondition = ISNULL(@SearchCondition,'') SET @SearchCondition = LTRIM(RTRIM(@SearchCondition)) IF @SearchCondition <> '' BEGIN IF UPPER(SUBSTRING(@SearchCondition,1,5)) <> 'WHERE' BEGIN SET @SearchCondition = 'WHERE ' + @SearchCondition END END PRINT @SearchCondition SET @OrderExpression = ISNULL(@OrderExpression,'') SET @OrderExpression = LTRIM(RTRIM(@OrderExpression)) IF @OrderExpression <> '' BEGIN IF UPPER(SUBSTRING(@OrderExpression,1,5)) <> 'WHERE' BEGIN SET @OrderExpression = 'ORDER BY ' + @OrderExpression END END PRINT @OrderExpression IF @PageIndex IS NULL OR @PageIndex < 1 BEGIN SET @PageIndex = 1 END PRINT @PageIndex IF @PageSize IS NULL OR @PageSize < 1 BEGIN SET @PageSize = 10 END PRINT @PageSize DECLARE @Total int DECLARE @Sql nVarchar(max) SET @Sql=(N'SELECT @Total=Count(*) FROM ' + @TableSource +' '+ @SearchCondition) print @sql Exec sp_executesql @Sql, N'@Total Int Out',@Total Out set @TotalCount=@Total DECLARE @SqlQuery VARCHAR(max) SET @SqlQuery='SELECT '+@SelectList+',RowNumber FROM (SELECT ' + @SelectList + ',ROW_NUMBER() OVER( '+ @OrderExpression +') AS RowNumber FROM '+@TableSource+' '+ @SearchCondition +') AS RowNumberTableSource WHERE RowNumber BETWEEN ' + CAST(((@PageIndex - 1)* @PageSize+1) AS VARCHAR) + ' AND ' + CAST((@PageIndex * @PageSize) AS VARCHAR) -- ORDER BY ' + @OrderExpression PRINT @SqlQuery SET NOCOUNT ON EXECUTE(@SqlQuery) SET NOCOUNT OFF END
/// <summary> /// 查询接口 /// </summary> public interface IQuery { string Column { get; set; } //列名 string TableName { get; set; } //表名 string OrderBy { get; set; } //查询的"OrderBy"语句,不包含OrderBy,例子:ID DESC string BulidQuery(); //查询的"where"语句 string BulidSelect(string where, string tableName = ""); //查语句 }
/// <summary> /// 分页实现简单查询 /// </summary> public class CommonPageSql { /// <summary> /// 分页获取数据列表 适用于SQL2005和SQL2008 /// </summary> /// <param name="con">数据库连接字符串</param> /// <param name="pageindex">页索引 从0开始</param> /// <param name="pagesize">每页记录数</param> /// <param name="query">查询接口</param> /// <param name="p">输出参数</param> /// <returns>DataRead数据集</returns> public static IDataReader GetDataReaderByPager(string con, int pageindex, int pagesize, IQuery query, out SqlParameter p) { string cmd = "RecordFromPage"; SqlParameter[] para = SqlHelperParameterCache.GetSpParameterSet(con, cmd); para[0].Value = query.Column; para[1].Value = query.TableName; para[2].Value = query.BulidQuery(); para[3].Value = query.OrderBy; para[4].Value = pageindex; para[5].Value = pagesize; para[6].Direction = ParameterDirection.Output; //SqlParameter[] para = new SqlParameter[7]; //para[0] = new SqlParameter("@SelectList", query.Column); //para[1] = new SqlParameter("@TableSource", query.TableName); //para[2] = new SqlParameter("@SearchCondition", query.BulidQuery()); //para[3] = new SqlParameter("@OrderExpression", query.OrderBy); //para[4] = new SqlParameter("@pageindex", pageindex); //para[5] = new SqlParameter("@pagesize", pagesize); //para[6] = new SqlParameter("@TotalCount", SqlDbType.Int); //para[6].Direction = ParameterDirection.Output; IDataReader reader = SqlHelper.ExecuteReader(con, CommandType.StoredProcedure, cmd, para); p = para[6]; return reader; } /// <summary> /// 分页获取数据列表 适用于SQL2005和SQL2008 /// </summary> /// <param name="con">数据库连接字符串</param> /// <param name="pageindex">页索引 从0开始</param> /// <param name="pagesize">每页记录数</param> /// <param name="query">查询接口</param> /// <param name="p">输出参数</param> /// <returns>DataTable数据集</returns> public static DataTable GetDataByPager(string con, int pageindex, int pagesize, IQuery query, out SqlParameter p) { string cmd = "RecordFromPage"; SqlParameter[] para = SqlHelperParameterCache.GetSpParameterSet(con, cmd); para[0].Value = query.Column; para[1].Value = query.TableName; para[2].Value = query.BulidQuery(); para[3].Value = query.OrderBy; para[4].Value = pageindex; para[5].Value = pagesize; para[6].Direction = ParameterDirection.Output; DataTable datatable = SqlHelper.ExecuteDataset(con,CommandType.StoredProcedure,cmd,para).Tables[0]; p = para[6]; return datatable; } }
/// <summary> /// 简单查询帮助类 /// </summary> public class CommonSelectSql { #region DataReader /// <summary> /// 获取数据 /// </summary> /// <param name="con">数据库连接字符串</param> /// <param name="top">前几条</param> /// <param name="Query">查询构建类</param> /// <returns>DataReader数据表</returns> public static IDataReader SelectGetReader(string con,int top,IQuery Query) { return GetDataReader(con,top, Query.TableName, Query.Column, Query.BulidQuery(), Query.OrderBy); } /// <summary> /// 获得前几行数据 /// </summary> /// <param name="connstring">数据库连接字符串</param> /// <param name="Top">几条记录</param> /// <param name="tableName">表名</param> /// <param name="Column">列名</param> /// <param name="strWhere">查询条件</param> /// <param name="filedOrder">排序方式</param> /// <returns>DataReader数据表</returns> private static IDataReader GetDataReader(string connstring,int Top, string tableName, string Column, string strWhere, string filedOrder) { StringBuilder strSql = new StringBuilder(); strSql.AppendFormat("SELECT * FROM(SELECT ROW_NUMBER() OVER(ORDER BY {0}) ROWNUM,", filedOrder); if (!string.IsNullOrEmpty(Column)) { strSql.Append(Column); } else { strSql.Append("*"); } strSql.Append(" FROM " + tableName); if (strWhere.Trim() != "") { strSql.Append(" where " + strWhere + ") T"); } else { strSql.Append(") T"); } if (Top > 0) { strSql.AppendFormat(" WHERE T.ROWNUM <= {0}",Top); } return SqlHelper.ExecuteReader(connstring, CommandType.Text, strSql.ToString()); } #endregion #region DataTable /// <summary> /// 获取数据 /// </summary> /// <param name="con">数据库连接字符串</param> /// <param name="top">前几条</param> /// <param name="Query">查询构建类</param> /// <returns>DataTable数据表</returns> public static DataTable SelectGetTable(string con, int top, IQuery Query) { return GetDataTable(con, top, Query.TableName, Query.Column, Query.BulidQuery(), Query.OrderBy); } /// <summary> /// 获得前几行数据 /// </summary> /// <param name="con">数据库连接字符串</param> /// <param name="Top">几条记录</param> /// <param name="tableName">表名</param> /// <param name="Column">列名</param> /// <param name="strWhere">查询条件</param> /// <param name="filedOrder">排序方式</param> /// <returns>DataTable数据表</returns> private static DataTable GetDataTable(string con,int Top, string tableName, string Column, string strWhere, string filedOrder) { StringBuilder strSql = new StringBuilder(); strSql.Append("select "); if (Top > 0) { strSql.Append(" top " + Top.ToString()); } strSql.Append(Column); strSql.Append(" FROM " + tableName); if (strWhere.Trim() != "") { strSql.Append(" where " + strWhere); } strSql.Append(" order by " + filedOrder); return SqlHelper.ExecuteDataset(con,CommandType.Text,strSql.ToString()).Tables[0]; } #endregion }
/// <summary> /// 用来缓存SqlParameter /// </summary> public sealed class SqlHelperParameterCache { #region 私有方法,变量,跟构造函数 private SqlHelperParameterCache() { } private static Hashtable paramCache = Hashtable.Synchronized(new Hashtable()); /// <summary> /// 返回存储过程中的参数信息 /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="spName">存储过程名</param> /// <param name="includeReturnValueParameter">是否返回需要返回的参数@RETURN_VALUE</param> /// <returns>返回的参数数组.</returns> private static SqlParameter[] DiscoverSpParameterSet(SqlConnection connection, string spName, bool includeReturnValueParameter) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程名"); SqlCommand cmd = new SqlCommand(spName, connection); cmd.CommandType = CommandType.StoredProcedure; connection.Open(); SqlCommandBuilder.DeriveParameters(cmd); connection.Close(); if (!includeReturnValueParameter) { cmd.Parameters.RemoveAt(0); } SqlParameter[] discoveredParameters = new SqlParameter[cmd.Parameters.Count]; cmd.Parameters.CopyTo(discoveredParameters, 0); foreach (SqlParameter discoveredParameter in discoveredParameters) { discoveredParameter.Value = DBNull.Value; } return discoveredParameters; } /// <summary> /// 复制一份参数数组 /// </summary> /// <param name="originalParameters">参数数组</param> /// <returns>参数数组</returns> private static SqlParameter[] CloneParameters(SqlParameter[] originalParameters) { SqlParameter[] clonedParameters = new SqlParameter[originalParameters.Length]; for (int i = 0, j = originalParameters.Length; i < j; i++) { clonedParameters[i] = (SqlParameter)((ICloneable)originalParameters[i]).Clone(); } return clonedParameters; } #endregion #region 缓存方法 /// <summary> /// 将参数数组添加到缓存 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> public static void CacheParameterSet(string connectionString, string commandText, params SqlParameter[] commandParameters) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString"); if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText"); string hashKey = connectionString + ":" + commandText; paramCache[hashKey] = commandParameters; } /// <summary> /// 从缓存里获取参数数组 /// </summary> /// <param name="connectionString">一个有效的数据库连接字符串</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>参数数组</returns> public static SqlParameter[] GetCachedParameterSet(string connectionString, string commandText) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("没有提供存储过程的名字或者 T-SQL 语句"); string hashKey = connectionString + ":" + commandText; SqlParameter[] cachedParameters = paramCache[hashKey] as SqlParameter[]; if (cachedParameters == null) { return null; } else { return CloneParameters(cachedParameters); } } #endregion caching functions #region 获取参数 /// <summary> /// 通过存储过程名跟连接字符串获取缓存中的参数数组 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程名</param> /// <returns>参数数组</returns> public static SqlParameter[] GetSpParameterSet(string connectionString, string spName) { return GetSpParameterSet(connectionString, spName, false); } /// <summary> /// 通过存储过程名跟连接字符串获取缓存中的参数数组 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程名</param> /// <param name="includeReturnValueParameter">是否返回输出参数</param> /// <returns>参数数组</returns> public static SqlParameter[] GetSpParameterSet(string connectionString, string spName, bool includeReturnValueParameter) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); using (SqlConnection connection = new SqlConnection(connectionString)) { return GetSpParameterSetInternal(connection, spName, includeReturnValueParameter); } } /// <summary> /// 通过数据库连接对象获取缓存中的参数数组 /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="spName">存储过程名</param> /// <returns>参数数组</returns> internal static SqlParameter[] GetSpParameterSet(SqlConnection connection, string spName) { return GetSpParameterSet(connection, spName, false); } /// <summary> /// 通过数据库连接对象获取缓存中的参数数组 /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="spName">存储过程名</param> /// <param name="includeReturnValueParameter">是否返回输出参数</param> /// <returns>参数数组</returns> internal static SqlParameter[] GetSpParameterSet(SqlConnection connection, string spName, bool includeReturnValueParameter) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); using (SqlConnection clonedConnection = (SqlConnection)((ICloneable)connection).Clone()) { return GetSpParameterSetInternal(clonedConnection, spName, includeReturnValueParameter); } } /// <summary> /// 通过数据库连接对象获取缓存中的参数数组 /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="spName">存储过程名</param> /// <param name="includeReturnValueParameter">是否返回输出参数</param> /// <returns>参数数组</returns> private static SqlParameter[] GetSpParameterSetInternal(SqlConnection connection, string spName, bool includeReturnValueParameter) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); string hashKey = connection.ConnectionString + ":" + spName + (includeReturnValueParameter ? ":include ReturnValue Parameter" : ""); SqlParameter[] cachedParameters; cachedParameters = paramCache[hashKey] as SqlParameter[]; if (cachedParameters == null) { SqlParameter[] spParameters = DiscoverSpParameterSet(connection, spName, includeReturnValueParameter); paramCache[hashKey] = spParameters; cachedParameters = spParameters; } return CloneParameters(cachedParameters); } #endregion }
/// <summary> /// 封装数据库操作方法 /// </summary> public abstract class SqlHelper { #region 私有方法以及构造方法 //不允许建立实例 private SqlHelper() { } //获取数据库连接 public static SqlConnection GetSqlConnection(string con) { try { return new SqlConnection(con); } catch { throw new Exception("连接出错"); } } /// <summary> /// 这个方法给SqlCommand添加参数 /// </summary> /// <param name="command">需要添加参数的command</param> /// <param name="commandParameters">参数数组</param> private static void AttachParameters(SqlCommand command, SqlParameter[] commandParameters) { if (command == null) throw new ArgumentNullException("command"); if (commandParameters != null) { foreach (SqlParameter p in commandParameters) { if (p != null) { // 检查当为输入参数时赋予默认值 if ((p.Direction == ParameterDirection.InputOutput || p.Direction == ParameterDirection.Input) && (p.Value == null)) { p.Value = DBNull.Value; } command.Parameters.Add(p); } } } } /// <summary> /// 这个方法使用的DataRow列的值填充SqlParameter数组 /// </summary> /// <param name="commandParameters">需要填充到SqlParameter数组的DataRow</param> /// <param name="dataRow">需要用到的DataRow</param> private static void AssignParameterValues(SqlParameter[] commandParameters, DataRow dataRow) { if ((commandParameters == null) || (dataRow == null)) { return; } int i = 0; foreach (SqlParameter commandParameter in commandParameters) { if (commandParameter.ParameterName == null || commandParameter.ParameterName.Length <= 1) throw new Exception( "没有给SqlParameter赋予ParameterName"); if (dataRow.Table.Columns.IndexOf(commandParameter.ParameterName.Substring(1)) != -1) commandParameter.Value = dataRow[commandParameter.ParameterName.Substring(1)]; i++; } } /// <summary> /// 给SqlParameter数组赋值 /// </summary> /// <param name="commandParameters">SqlParameter数组</param> /// <param name="parameterValues">参数值的数组</param> private static void AssignParameterValues(SqlParameter[] commandParameters, object[] parameterValues) { if ((commandParameters == null) || (parameterValues == null)) { return; } if (commandParameters.Length != parameterValues.Length) { throw new ArgumentException("SqlParameter数组的长度跟参数值的数组的长度不匹配"); } // Iterate through the SqlParameters, assigning the values from the corresponding position in the // value array for (int i = 0, j = commandParameters.Length; i < j; i++) { // 如果目前的数组值来自IDbDataParameter 则填充 if (parameterValues[i] is IDbDataParameter) { IDbDataParameter paramInstance = (IDbDataParameter)parameterValues[i]; if (paramInstance.Value == null) { commandParameters[i].Value = DBNull.Value; } else { commandParameters[i].Value = paramInstance.Value; } } else if (parameterValues[i] == null) { commandParameters[i].Value = DBNull.Value; } else { commandParameters[i].Value = parameterValues[i]; } } } /// <summary> /// 为执行sql命令做准备 /// </summary> /// <param name="command">sql指令</param> /// <param name="connection">数据库连接</param> /// <param name="transaction">数据库事务</param> /// <param name="commandType">指令类型</param> /// <param name="commandText">sql语句或存储过程</param> /// <param name="commandParameters">执行sql需要传入的参数</param> /// <param name="mustCloseConnection">如果sql连接还没有关闭着返回true</param> private static void PrepareCommand(SqlCommand command, SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, SqlParameter[] commandParameters, out bool mustCloseConnection) { if (command == null) throw new ArgumentNullException("缺少SqlCommand参数"); if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("缺少sql语句或存储过程语句"); //当数据库没有连接则连接 if (connection.State != ConnectionState.Open) { mustCloseConnection = true; connection.Open(); } else { mustCloseConnection = true; } command.Connection = connection; command.CommandText = commandText; if (transaction != null) { if (transaction.Connection == null) throw new ArgumentException("请提供一个已经打开的事务", "transaction"); command.Transaction = transaction; } command.CommandType = commandType; if (commandParameters != null) { AttachParameters(command, commandParameters); } return; } #endregion #region ExecuteNonQuery /// <summary> ///执行的SqlCommand (返回结果并没有任何参数) /// </summary> /// <param name="connectionString">一个有效的数据库连接字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(string connectionString, CommandType commandType, string commandText) { return ExecuteNonQuery(connectionString, commandType, commandText, (SqlParameter[])null); } /// <summary> ///执行的SqlCommand (没有返回结果) /// </summary> /// <param name="connectionString">一个有效的数据库连接字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(string connectionString, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); return ExecuteNonQuery(connection, commandType, commandText, commandParameters); } } /// <summary> /// 执行存储过程通过的SqlCommand (没有返回结果) /// </summary> /// <param name="connectionString">一个有效的数据库连接字符串</param> /// <param name="spName">存储过程名称</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(string connectionString, string spName, params object[] parameterValues) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connectionString, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行的SqlCommand (返回结果并没有任何参数)。 /// </summary> /// <param name="connection">SqlConnection连接</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(SqlConnection connection, CommandType commandType, string commandText) { // Pass through the call providing null for the set of SqlParameters return ExecuteNonQuery(connection, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (返回结果并没有任何参数) /// </summary> /// <param name="connection">一个现有的数据库连接</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (connection == null) throw new ArgumentNullException("没有提供现有的数据库连接"); SqlCommand cmd = new SqlCommand(); bool mustCloseConnection = true; PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection); int retval = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); if (mustCloseConnection) connection.Close(); return retval; } /// <summary> ///执行存储过程通过的SqlCommand (没有返回结果) /// </summary> /// <param name="connection">一个现有的数据库连接</param> /// <param name="spName">存储过程名称</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(SqlConnection connection, string spName, params object[] parameterValues) { if (connection == null) throw new ArgumentNullException("没有提供现有的数据库连接"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程的名字"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteNonQuery(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteNonQuery(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行的SqlCommand (没有返回结果并没有任何参数)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>A返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(SqlTransaction transaction, CommandType commandType, string commandText) { return ExecuteNonQuery(transaction, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (没有返回结果)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (transaction == null) throw new ArgumentNullException("transaction"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("请为提供SqlTransaction提供连接", "transaction"); SqlCommand cmd = new SqlCommand(); bool mustCloseConnection = true; PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection); int retval = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); return retval; } /// <summary> /// 执行的SqlCommand (没有返回结果)对所提供的SqlTransaction /// </summary> /// <param name="transaction">事务</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个数值表示此SqlCommand命令执行后影响的行数</returns> public static int ExecuteNonQuery(SqlTransaction transaction, string spName, params object[] parameterValues) { if (transaction == null) throw new ArgumentNullException("transaction"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("请为提供SqlTransaction提供连接", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("请提供存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName); } } #endregion ExecuteNonQuery #region ExecuteDataset /// <summary> /// 执行的SqlCommand (即返回一个结果,并没有任何参数) /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(string connectionString, CommandType commandType, string commandText) { return ExecuteDataset(connectionString, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (即返回一个结果) /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(string connectionString, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString参数没有提供"); using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); return ExecuteDataset(connection, commandType, commandText, commandParameters); } } /// <summary> /// 使用存储过程执行的SqlCommand (即返回一个结果). /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(string connectionString, string spName, params object[] parameterValues) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString参数没有提供"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connectionString, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteDataset(connectionString, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteDataset(connectionString, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行的SqlCommand (即返回一个结果,并没有任何参数) /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(SqlConnection connection, CommandType commandType, string commandText) { return ExecuteDataset(connection, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (即返回一个结果) /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (connection == null) throw new ArgumentNullException("没有提供SqlConnection对象"); SqlCommand cmd = new SqlCommand(); bool mustCloseConnection = true; cmd.CommandTimeout = connection.ConnectionTimeout; PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection); using (SqlDataAdapter da = new SqlDataAdapter(cmd)) { DataSet ds = new DataSet(); da.Fill(ds); cmd.Parameters.Clear(); if (mustCloseConnection) connection.Close(); return ds; } } /// <summary> /// 使用存储过程执行的SqlCommand (即返回一个结果). /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="spName">存储过程的名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(SqlConnection connection, string spName, params object[] parameterValues) { if (connection == null) throw new ArgumentNullException("没有提供SqlConnection对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteDataset(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteDataset(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行的SqlCommand (即返回一个结果,没有任何参数)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(SqlTransaction transaction, CommandType commandType, string commandText) { return ExecuteDataset(transaction, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (即返回一个结果)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (transaction == null) throw new ArgumentNullException("没有提供transaction"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction.", "transaction"); SqlCommand cmd = new SqlCommand(); bool mustCloseConnection = true; PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection); using (SqlDataAdapter da = new SqlDataAdapter(cmd)) { DataSet ds = new DataSet(); da.Fill(ds); cmd.Parameters.Clear(); return ds; } } /// <summary> /// 使用存储过程执行的SqlCommand (即返回一个结果)对所提供的SqlTransaction 。. /// </summary> /// <param name="transaction">事务</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回结果集DataSet</returns> public static DataSet ExecuteDataset(SqlTransaction transaction, string spName, params object[] parameterValues) { if (transaction == null) throw new ArgumentNullException("没有提供transaction"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction.", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteDataset(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteDataset(transaction, CommandType.StoredProcedure, spName); } } #endregion ExecuteDataset #region ExecuteReader /// <summary> /// 这个枚举用来表是把数据库连接对象交给sqlHelper来处理还是调用者自己进行处理 /// </summary> private enum SqlConnectionOwnership { /// <summary>SqlHelper来处理</summary> Internal, /// <summary>调用者自行处理</summary> External } /// <summary> /// 执行的SqlCommand (即返回一个只读结果) /// </summary> /// <param name="connection">一个有效的SqlConnection </param> /// <param name="transaction">一个有效的SqlTransaction,可以为null</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <param name="connectionOwnership">sqlHelper来处理还是调用者自己进行处理数据库连接对象</param> /// <returns>返回一个只读结果</returns> private static SqlDataReader ExecuteReader(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, SqlParameter[] commandParameters, SqlConnectionOwnership connectionOwnership) { if (connection == null) throw new ArgumentNullException("没有提供SqlConnection对象"); bool mustCloseConnection = true; SqlCommand cmd = new SqlCommand(); cmd.CommandTimeout = 180; try { PrepareCommand(cmd, connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection); SqlDataReader dataReader; if (connectionOwnership == SqlConnectionOwnership.External) { dataReader = cmd.ExecuteReader(); } else { dataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection); } bool canClear = true; foreach (SqlParameter commandParameter in cmd.Parameters) { if (commandParameter.Direction != ParameterDirection.Input) canClear = false; } if (canClear) { cmd.Parameters.Clear(); } return dataReader; } catch { if (mustCloseConnection) connection.Close(); throw; } } /// <summary> /// 执行的SqlCommand (即返回一个只读结果,没有参数) /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(string connectionString, CommandType commandType, string commandText) { return ExecuteReader(connectionString, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (即返回一个只读结果) /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(string connectionString, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); SqlConnection connection = null; try { connection = new SqlConnection(connectionString); connection.Open(); return ExecuteReader(connection, null, commandType, commandText, commandParameters, SqlConnectionOwnership.Internal); } catch { if (connection != null) connection.Close(); throw; } } /// <summary> /// 使用存储过程执行SqlCommand (即返回一个只读结果) /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(string connectionString, string spName, params object[] parameterValues) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connectionString, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteReader(connectionString, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteReader(connectionString, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行的SqlCommand (即返回一个只读结果,没有参数) /// </summary> /// <param name="connection">一个有效的SqlConnection </param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(SqlConnection connection, CommandType commandType, string commandText) { return ExecuteReader(connection, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (即返回一个只读结果) /// </summary> /// <param name="connection">一个有效的SqlConnection</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { return ExecuteReader(connection, (SqlTransaction)null, commandType, commandText, commandParameters, SqlConnectionOwnership.External); } /// <summary> /// 使用存储过程执行SqlCommand (即返回一个只读结果) /// </summary> /// <param name="connection">一个有效的SqlConnection</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(SqlConnection connection, string spName, params object[] parameterValues) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteReader(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteReader(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行的SqlCommand (即返回一个只读结果,没有传入的参数)对所提供的SqlTransaction 。. /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(SqlTransaction transaction, CommandType commandType, string commandText) { return ExecuteReader(transaction, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (即返回一个只读结果)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (transaction == null) throw new ArgumentNullException("没有提供transaction"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction.", "transaction"); return ExecuteReader(transaction.Connection, transaction, commandType, commandText, commandParameters, SqlConnectionOwnership.External); } /// <summary> /// 使用存储过程执行的SqlCommand (即返回一个只读结果)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回一个只读结果</returns> public static SqlDataReader ExecuteReader(SqlTransaction transaction, string spName, params object[] parameterValues) { if (transaction == null) throw new ArgumentNullException("没有提供transaction"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction.", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteReader(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteReader(transaction, CommandType.StoredProcedure, spName); } } #endregion ExecuteReader #region ExecuteScalar /// <summary> /// 执行的SqlCommand (即返回第一行第一列,不带参数) /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(string connectionString, CommandType commandType, string commandText) { return ExecuteScalar(connectionString, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (即返回第一行第一列) /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(string connectionString, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); return ExecuteScalar(connection, commandType, commandText, commandParameters); } } /// <summary> /// 使用存储过程执行的SqlCommand (即返回第一行第一列) /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(string connectionString, string spName, params object[] parameterValues) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connectionString, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteScalar(connectionString, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteScalar(connectionString, CommandType.StoredProcedure, spName); } } /// <summary> ///执行的SqlCommand (即返回第一行第一列,不带参数) /// </summary> /// <param name="connection">有效的数据库连接</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(SqlConnection connection, CommandType commandType, string commandText) { return ExecuteScalar(connection, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 有效的数据库连接 /// </summary> /// <param name="connection">有效的数据库连接</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); SqlCommand cmd = new SqlCommand(); bool mustCloseConnection = true; PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection); object retval = cmd.ExecuteScalar(); cmd.Parameters.Clear(); if (mustCloseConnection) connection.Close(); return retval; } /// <summary> /// 使用存储过程执行的SqlCommand (即返回第一行第一列) /// </summary> /// <param name="connection">有效的数据库连接</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(SqlConnection connection, string spName, params object[] parameterValues) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteScalar(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteScalar(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行SqlCommand (即返回第一行第一列,不带参数)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(SqlTransaction transaction, CommandType commandType, string commandText) { return ExecuteScalar(transaction, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行SqlCommand (即返回第一行第一列)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction", "transaction"); SqlCommand cmd = new SqlCommand(); bool mustCloseConnection = true; PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection); object retval = cmd.ExecuteScalar(); cmd.Parameters.Clear(); return retval; } /// <summary> /// 使用存储过程执行的SqlCommand (即返回第一行第一列)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回数据库中第一行第一列的数据</returns> public static object ExecuteScalar(SqlTransaction transaction, string spName, params object[] parameterValues) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteScalar(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteScalar(transaction, CommandType.StoredProcedure, spName); } } #endregion ExecuteScalar #region ExecuteXmlReader /// <summary> /// 执行的SqlCommand (即返回一个XmlReader,并没有任何参数)对所提供的SqlConnection 。 /// </summary> /// <param name="connection">有效的数据库连接</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回的xmlReader对象</returns> public static XmlReader ExecuteXmlReader(SqlConnection connection, CommandType commandType, string commandText) { return ExecuteXmlReader(connection, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行的SqlCommand (即返回一个XmlReader)对所提供的SqlConnection 。 /// </summary> /// <param name="connection">有效的数据库连接</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回的xmlReader对象</returns> public static XmlReader ExecuteXmlReader(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (connection == null) throw new ArgumentNullException("没有提供SqlConnection对象"); bool mustCloseConnection = true; SqlCommand cmd = new SqlCommand(); try { PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection); XmlReader retval = cmd.ExecuteXmlReader(); cmd.Parameters.Clear(); return retval; } catch { if (mustCloseConnection) connection.Close(); throw; } } /// <summary> /// 使用存储过程执行的SqlCommand (即返回一个XmlReader)对所提供的SqlConnection 。 /// </summary> /// <param name="connection">有效的数据库连接</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回的xmlReader对象</returns> public static XmlReader ExecuteXmlReader(SqlConnection connection, string spName, params object[] parameterValues) { if (connection == null) throw new ArgumentNullException("没有提供SqlConnection对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteXmlReader(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteXmlReader(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行SqlCommand (即返回第一行第一列,不带参数)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <returns>返回的xmlReader对象</returns> public static XmlReader ExecuteXmlReader(SqlTransaction transaction, CommandType commandType, string commandText) { return ExecuteXmlReader(transaction, commandType, commandText, (SqlParameter[])null); } /// <summary> /// 执行SqlCommand (即返回第一行第一列)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回的xmlReader对象</returns> public static XmlReader ExecuteXmlReader(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction", "transaction"); SqlCommand cmd = new SqlCommand(); bool mustCloseConnection = true; PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection); XmlReader retval = cmd.ExecuteXmlReader(); cmd.Parameters.Clear(); return retval; } /// <summary> /// 使用存储过程执行SqlCommand (即返回第一行第一列)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">一个有效的SqlTransaction</param> /// <param name="spName">存储过程名</param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <returns>返回的xmlReader对象</returns> public static XmlReader ExecuteXmlReader(SqlTransaction transaction, string spName, params object[] parameterValues) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, parameterValues); return ExecuteXmlReader(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return ExecuteXmlReader(transaction, CommandType.StoredProcedure, spName); } } #endregion ExecuteXmlReader #region FillDataset /// <summary> /// 执行的SqlCommand (即返回一个DataSet,并没有任何参数) /// </summary> /// <param name="connectionString">数据库连接对象字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称)</param> public static void FillDataset(string connectionString, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("缺少数据库连接字符串"); if (dataSet == null) throw new ArgumentNullException("dataSet不能为null"); using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); FillDataset(connection, commandType, commandText, dataSet, tableNames); } } /// <summary> /// 执行的SqlCommand (即返回一个DataSet) /// </summary> /// <param name="connectionString">数据库连接对象字符串</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> public static void FillDataset(string connectionString, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames, params SqlParameter[] commandParameters) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("缺少数据库连接字符串"); if (dataSet == null) throw new ArgumentNullException("dataSet不能为null"); using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); FillDataset(connection, commandType, commandText, dataSet, tableNames, commandParameters); } } /// <summary> /// 使用存储过程执行的SqlCommand (即返回一个DataSet) /// </summary> /// <param name="connectionString">数据库连接对象字符串</param> /// <param name="spName">存储过程名</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> public static void FillDataset(string connectionString, string spName, DataSet dataSet, string[] tableNames, params object[] parameterValues) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("缺少数据库连接字符串"); if (dataSet == null) throw new ArgumentNullException("dataSet不能为null"); using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); FillDataset(connection, spName, dataSet, tableNames, parameterValues); } } /// <summary> /// 执行的SqlCommand (即返回一个DataSet,不带参数) /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> public static void FillDataset(SqlConnection connection, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames) { FillDataset(connection, commandType, commandText, dataSet, tableNames, null); } /// <summary> /// 执行的SqlCommand (即返回一个DataSet) /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> public static void FillDataset(SqlConnection connection, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames, params SqlParameter[] commandParameters) { FillDataset(connection, null, commandType, commandText, dataSet, tableNames, commandParameters); } /// <summary> /// 执行的SqlCommand (即返回一个DataSet) /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> public static void FillDataset(SqlConnection connection, string spName, DataSet dataSet, string[] tableNames, params object[] parameterValues) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (dataSet == null) throw new ArgumentNullException("dataSet不能为null"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, parameterValues); FillDataset(connection, CommandType.StoredProcedure, spName, dataSet, tableNames, commandParameters); } else { FillDataset(connection, CommandType.StoredProcedure, spName, dataSet, tableNames); } } /// <summary> /// 执行SqlCommand (即返回一个DataSet,不带参数)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> public static void FillDataset(SqlTransaction transaction, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames) { FillDataset(transaction, commandType, commandText, dataSet, tableNames, null); } /// <summary> /// 执行SqlCommand (即返回一个DataSet)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> public static void FillDataset(SqlTransaction transaction, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames, params SqlParameter[] commandParameters) { FillDataset(transaction.Connection, transaction, commandType, commandText, dataSet, tableNames, commandParameters); } /// <summary> /// 使用存储过程执行SqlCommand (即返回一个DataSet)对所提供的SqlTransaction 。 /// </summary> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="spName">存储过程</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> /// <param name="parameterValues">以数组形式提供SqlCommand命令中用到的参数列表</param> public static void FillDataset(SqlTransaction transaction, string spName, DataSet dataSet, string[] tableNames, params object[] parameterValues) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供一个打开的transaction", "transaction"); if (dataSet == null) throw new ArgumentNullException("dataSet不能为null"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程名"); if ((parameterValues != null) && (parameterValues.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, parameterValues); FillDataset(transaction, CommandType.StoredProcedure, spName, dataSet, tableNames, commandParameters); } else { FillDataset(transaction, CommandType.StoredProcedure, spName, dataSet, tableNames); } } /// <summary> /// 私有方法,执行的SqlCommand (即返回一个结果集)对指定的SqlTransaction和SqlConnection使用提供的参数。 /// </summary> /// <param name="connection">数据库连接对象</param> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="commandType">SqlCommand命令类型 (存储过程, T-SQL语句, 等等。)</param> /// <param name="commandText">存储过程的名字或者 T-SQL 语句</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableNames">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称) /// </param> /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param> private static void FillDataset(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames, params SqlParameter[] commandParameters) { if (connection == null) throw new ArgumentNullException("没有提供SqlConnection对象"); if (dataSet == null) throw new ArgumentNullException("dataSet不能为null"); SqlCommand command = new SqlCommand(); bool mustCloseConnection = true; PrepareCommand(command, connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection); using (SqlDataAdapter dataAdapter = new SqlDataAdapter(command)) { if (tableNames != null && tableNames.Length > 0) { string tableName = "Table"; for (int index = 0; index < tableNames.Length; index++) { if (tableNames[index] == null || tableNames[index].Length == 0) throw new ArgumentException("该tableNames参数必须包含一个表格中的字段,这里提供了一个值为空或空字符串.", "tableNames"); dataAdapter.TableMappings.Add(tableName, tableNames[index]); tableName += (index + 1).ToString(); } } dataAdapter.Fill(dataSet); command.Parameters.Clear(); } if (mustCloseConnection) connection.Close(); } #endregion #region UpdateDataset /// <summary> /// 执行各自的命令为每个插入,更新或删除的行中的数据。 /// </summary> /// <param name="insertCommand">插入的SqlCommand</param> /// <param name="deleteCommand">删除的SqlCommand</param> /// <param name="updateCommand">更新的SqlCommand</param> /// <param name="dataSet">一个DataSet ,其中将载有结果</param> /// <param name="tableName">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称)</param> public static void UpdateDataset(SqlCommand insertCommand, SqlCommand deleteCommand, SqlCommand updateCommand, DataSet dataSet, string tableName) { if (insertCommand == null) throw new ArgumentNullException("没有提供插入的SqlCommand"); if (deleteCommand == null) throw new ArgumentNullException("没有提供删除的SqlCommand"); if (updateCommand == null) throw new ArgumentNullException("没有提供更新的SqlCommand"); if (tableName == null || tableName.Length == 0) throw new ArgumentNullException("没有提供tableName"); using (SqlDataAdapter dataAdapter = new SqlDataAdapter()) { dataAdapter.UpdateCommand = updateCommand; dataAdapter.InsertCommand = insertCommand; dataAdapter.DeleteCommand = deleteCommand; dataAdapter.Update(dataSet, tableName); dataSet.AcceptChanges(); } } #endregion #region CreateCommand /// <summary> /// 简化建立一个SQL命令对象,允许存储过程和可选的参数 /// </summary> /// <param name="connection">有效的SqlConnection对象</param> /// <param name="spName">存储过程</param> /// <param name="sourceColumns">该数组将被用于创建表映射允许DataTables被引用的用户定义的名称(可能是实际的表名称)</param> /// <returns>sql命令对象</returns> public static SqlCommand CreateCommand(SqlConnection connection, string spName, params string[] sourceColumns) { if (connection == null) throw new ArgumentNullException("没有提供SqlConnection对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("存储过程名"); SqlCommand cmd = new SqlCommand(spName, connection); cmd.CommandType = CommandType.StoredProcedure; if ((sourceColumns != null) && (sourceColumns.Length > 0)) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); for (int index = 0; index < sourceColumns.Length; index++) commandParameters[index].SourceColumn = sourceColumns[index]; AttachParameters(cmd, commandParameters); } return cmd; } #endregion #region ExecuteNonQueryTypedParams /// <summary> /// 执行存储过程通过的SqlCommand (没有返回结果)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程</param> /// <param name="dataRow">储存参数值的DataRow.</param> /// <returns>返回更新的行数</returns> public static int ExecuteNonQueryTypedParams(String connectionString, String spName, DataRow dataRow) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程名"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connectionString, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行存储过程通过的SqlCommand (没有返回结果)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connection">有效的SqlConnection对象</param> /// <param name="spName">存储过程</param> /// <param name="dataRow">储存参数值的DataRow.</param> /// <returns>返回更新的行数</returns> public static int ExecuteNonQueryTypedParams(SqlConnection connection, String spName, DataRow dataRow) { if (connection == null) throw new ArgumentNullException("没有提供SqlConnection对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteNonQuery(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteNonQuery(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行存储过程通过的SqlCommand (没有返回结果)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回更新的行数</returns> public static int ExecuteNonQueryTypedParams(SqlTransaction transaction, String spName, DataRow dataRow) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供有连接的SqlTransaction对象", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName); } } #endregion #region ExecuteDatasetTypedParams /// <summary> ///执行预存程序通过的SqlCommand (返回DataSet)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回结果集Dataset</returns> public static DataSet ExecuteDatasetTypedParams(string connectionString, String spName, DataRow dataRow) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connectionString, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteDataset(connectionString, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteDataset(connectionString, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行预存程序通过的SqlCommand (返回DataSet)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connection">有效的SqlConnection对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回结果集Dataset</returns> public static DataSet ExecuteDatasetTypedParams(SqlConnection connection, String spName, DataRow dataRow) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteDataset(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteDataset(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行预存程序通过的SqlCommand (返回DataSet)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回结果集Dataset</returns> public static DataSet ExecuteDatasetTypedParams(SqlTransaction transaction, String spName, DataRow dataRow) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供有连接的SqlTransaction对象", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteDataset(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteDataset(transaction, CommandType.StoredProcedure, spName); } } #endregion #region ExecuteReaderTypedParams /// <summary> /// 执行预存程序通过的SqlCommand (返回SqlDataReader)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回结果集SqlDataReader</returns> public static SqlDataReader ExecuteReaderTypedParams(String connectionString, String spName, DataRow dataRow) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connectionString, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteReader(connectionString, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteReader(connectionString, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行预存程序通过的SqlCommand (返回SqlDataReader)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connection">有效的SqlConnection对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回结果集SqlDataReader</returns> public static SqlDataReader ExecuteReaderTypedParams(SqlConnection connection, String spName, DataRow dataRow) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteReader(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteReader(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行预存程序通过的SqlCommand (返回SqlDataReader)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回结果集SqlDataReader</returns> public static SqlDataReader ExecuteReaderTypedParams(SqlTransaction transaction, String spName, DataRow dataRow) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供有连接的SqlTransaction对象.", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteReader(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteReader(transaction, CommandType.StoredProcedure, spName); } } #endregion #region ExecuteScalarTypedParams /// <summary> /// 执行预存程序通过的SqlCommand (返回第一行第一列)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回第一行第一列</returns> public static object ExecuteScalarTypedParams(String connectionString, String spName, DataRow dataRow) { if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("没有提供数据库连接字符串"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connectionString, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteScalar(connectionString, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteScalar(connectionString, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行预存程序通过的SqlCommand (返回第一行第一列)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connection">有效的SqlConnection对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow</param> /// <returns>返回第一行第一列</returns> public static object ExecuteScalarTypedParams(SqlConnection connection, String spName, DataRow dataRow) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteScalar(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteScalar(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行预存程序通过的SqlCommand (返回第一行第一列)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow.</param> /// <returns>返回第一行第一列</returns> public static object ExecuteScalarTypedParams(SqlTransaction transaction, String spName, DataRow dataRow) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供有连接的SqlTransaction对象", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteScalar(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteScalar(transaction, CommandType.StoredProcedure, spName); } } #endregion #region ExecuteXmlReaderTypedParams /// <summary> /// 执行预存程序通过的SqlCommand (返回XmlReader)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="connection">有效的SqlConnection对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow.</param> /// <returns>返回XmlReader</returns> public static XmlReader ExecuteXmlReaderTypedParams(SqlConnection connection, String spName, DataRow dataRow) { if (connection == null) throw new ArgumentNullException("没有提供数据库连接对象"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteXmlReader(connection, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteXmlReader(connection, CommandType.StoredProcedure, spName); } } /// <summary> /// 执行预存程序通过的SqlCommand (返回XmlReader)使用的DataRow列的值的存储过程的参数值。这种方法将查询数据库,发现参数的存储过程(第一次每一个存储过程被称为) ,并指定值的基础上连续值。 /// </summary> /// <param name="transaction">有效的SqlTransaction对象</param> /// <param name="spName">存储过程名</param> /// <param name="dataRow">储存参数值的DataRow.</param> /// <returns>返回XmlReader</returns> public static XmlReader ExecuteXmlReaderTypedParams(SqlTransaction transaction, String spName, DataRow dataRow) { if (transaction == null) throw new ArgumentNullException("没有提供SqlTransaction对象"); if (transaction != null && transaction.Connection == null) throw new ArgumentException("没有提供有连接的SqlTransaction对象.", "transaction"); if (spName == null || spName.Length == 0) throw new ArgumentNullException("没有提供存储过程"); if (dataRow != null && dataRow.ItemArray.Length > 0) { SqlParameter[] commandParameters = SqlHelperParameterCache.GetSpParameterSet(transaction.Connection, spName); AssignParameterValues(commandParameters, dataRow); return SqlHelper.ExecuteXmlReader(transaction, CommandType.StoredProcedure, spName, commandParameters); } else { return SqlHelper.ExecuteXmlReader(transaction, CommandType.StoredProcedure, spName); } } #endregion /// <summary> /// 执行多条SQL语句,实现数据库事务。 /// </summary> /// <param name="connectionString">多条SQL语句</param> /// <param name="SQLStringList">多条SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSqlTran(string connectionString, List<String> SQLStringList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); SqlCommand cmd = new SqlCommand(); cmd.Connection = conn; SqlTransaction tx = conn.BeginTransaction(); cmd.Transaction = tx; try { int count = 0; for (int n = 0; n < SQLStringList.Count; n++) { string strsql = SQLStringList[n]; if (strsql.Trim().Length > 1) { cmd.CommandText = strsql; count += cmd.ExecuteNonQuery(); } } tx.Commit(); return count; } catch { tx.Rollback(); return 0; } } } /// <summary> /// 执行多条SQL语句,实现数据库事务。 /// </summary> /// <param name="connectionString">泛型列</param> /// <param name="SQLStringList">泛型列</param> /// <returns>影响的记录数</returns> public static int ExecuteSqlTran(string connectionString, List<CommandInfo> cmdList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); using (SqlTransaction trans = conn.BeginTransaction()) { SqlCommand cmd = new SqlCommand(); cmd.Connection = conn; cmd.Transaction = trans; int count = 0; //循环 foreach (CommandInfo myDE in cmdList) { cmd.Parameters.Clear(); cmd.CommandText = myDE.CommandText; cmd.CommandType = myDE.CommandType; AttachParameters(cmd, myDE.Parameters); try { int result = cmd.ExecuteNonQuery(); count += result; } catch { trans.Rollback(); return 0; } } trans.Commit(); return count; } } } /// <summary> /// 执行多条SQL语句,实现数据库事务。 /// </summary> /// <param name="connectionString">泛型列</param> /// <param name="SQLStringList">泛型列</param> /// <returns>影响的记录数</returns> public static int ExecuteSqlTranWithException(string connectionString, List<CommandInfo> cmdList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); using (SqlTransaction trans = conn.BeginTransaction()) { SqlCommand cmd = new SqlCommand(); cmd.Connection = conn; cmd.Transaction = trans; int count = 0; //循环 foreach (CommandInfo myDE in cmdList) { cmd.Parameters.Clear(); cmd.CommandText = myDE.CommandText; cmd.CommandType = myDE.CommandType; AttachParameters(cmd, myDE.Parameters); try { int result = cmd.ExecuteNonQuery(); count += result; } catch (Exception ex) { trans.Rollback(); throw; } } trans.Commit(); return count; } } } ///<summary> ///直接通过DataSet更新数据库表 ///</summary> ///<param name="ds"></param> ///<param name="strTblName">ds中要更新的表名</param> ///<param name="strConnection"></param> ///<returns></returns> public static int UpdateByDataSet(DataSet ds, string strTblName, string strConnection) { SqlConnection conn = new SqlConnection(strConnection); SqlDataAdapter myAdapter = new SqlDataAdapter(); SqlCommand myCommand = new SqlCommand("select * from " + strTblName, conn); myAdapter.SelectCommand = myCommand; SqlCommandBuilder myCommandBuilder = new SqlCommandBuilder(myAdapter); return myAdapter.Update(ds, strTblName); } /// <summary> /// 判断reader里是否存在列名 /// </summary> /// <param name="reader"></param> /// <param name="name"></param> /// <returns></returns> public static bool ContainsField(IDataReader reader, string name) { for (int i = 0; i < reader.FieldCount; i++) { if (reader.GetName(i) == name) return true; } return false; } }
public class CommandInfo { private string _commandText; private CommandType _commandType; public CommandType CommandType { get { return _commandType; } set { _commandType = value; } } public string CommandText { get { return _commandText; } set { _commandText = value; } } private SqlParameter[] _parameters; public SqlParameter[] Parameters { get { return _parameters; } set { _parameters = value; } } public CommandInfo(string sqlText, SqlParameter[] para, CommandType ct) { _commandText = sqlText; _parameters = para; _commandType = ct; } }