原创企业级控件库之大数据量分页控件
原创企业级控件库之大数据量分页控件
发布日期:2010年12月18日星期六作者:EricHu
在上篇:我介绍了原创企业级控件库之组合查询控件,这篇我将给大家介绍:企业级控件库之大数据量分页控件。
摘要
说到分页,大家采用的方法各有千秋,分页在一个中大型软件项目中对数据的快速呈现起到很关键的作用,试想一个数据量上几十万或者几百万的数据表,要是没有分页功能会是一个什么样的效果。总的说来,大家采用的分页方法大同小异,但到底那种方法才是最佳的呢,各有各的看法,让数据说话最有效。今天我给大家分享一个WinForm下大数据量分页控件(当然分页思想也可用于WebForm)。虽然不能说是最佳的,但在我的几个实际项目中,用的都是它,效果不错,可放心使用。
成就别人、等于成就自己。我没什么要求,欢迎大家多多支持与评论,觉得不错的,记得点击文章左下角的”关注博客”,就这么简单。同时,你要用什么好的想法,也可以与我交流,谢谢。
分页控件运行效果如下图:
用到的分页存储过程:
代码
-- =============================================
-- Author: EricHu QQ:406590790 WebSite:http://www.cnblogs.com/huyong/
-- Create date: 2008-10-25
-- Description: 千万数量级分页存储过程
-- Modify Date: 2010-10-26
-- =============================================
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTERPROCEDURE[dbo].[uspDividePage]
/*
***************************************************************
** 千万数量级分页存储过程**
***************************************************************
参数说明:
1.Tables :表名或视图名
2.PrimaryKey :主关键字
3.Sort :排序语句,不带Order By 比如:UserId Desc,CreateDate Asc
4.CurrentPage :当前页码
5.PageSize :分页尺寸
6.Fields :字段列表(默认为:*)
7.Filter :过滤语句,不带Where
8.Group :Group语句,不带Group By
***************************************************************/
(
@Tablesvarchar(2000),
@PrimaryKeyvarchar(500),
@Sortvarchar(500) =NULL,
@CurrentPageint=1,
@PageSizeint=10,
@Fieldsvarchar(2000) ='*',
@Filtervarchar(1000) =NULL,
@Groupvarchar(1000) =NULL
)
AS
/*默认排序*/
IF@SortISNULLOR@Sort=''
SET@Sort=@PrimaryKey
DECLARE@SortTablevarchar(1000)
DECLARE@SortNamevarchar(1000)
DECLARE@strSortColumnvarchar(1000)
DECLARE@operatorchar(2)
DECLARE@typevarchar(1000)
DECLARE@precint
/*设定排序语句.*/
IFCHARINDEX('DESC',@Sort)>0
BEGIN
SET@strSortColumn=REPLACE(@Sort, 'DESC', '')
SET@operator='<='
END
ELSE
BEGIN
IFCHARINDEX('ASC', @Sort) =0
SET@strSortColumn=REPLACE(@Sort, 'ASC', '')
SET@operator='>='
END
IFCHARINDEX('.', @strSortColumn) >0
BEGIN
SET@SortTable=SUBSTRING(@strSortColumn, 0, CHARINDEX('.',@strSortColumn))
SET@SortName=SUBSTRING(@strSortColumn, CHARINDEX('.',@strSortColumn) +1, LEN(@strSortColumn))
END
ELSE
BEGIN
SET@SortTable=@Tables
SET@SortName=@strSortColumn
END
SELECT@type=t.name, @prec=c.prec
FROM sysobjects o
JOIN syscolumns c on o.id=c.id
JOIN systypes t on c.xusertype=t.xusertype
WHERE o.name =@SortTableAND c.name =@SortName
IFCHARINDEX('char', @type) >0
SET@type=@type+'('+CAST(@precASvarchar) +')'
DECLARE@strPageSizevarchar(500)
DECLARE@strStartRowvarchar(500)
DECLARE@strFiltervarchar(1000)
DECLARE@strSimpleFiltervarchar(1000)
DECLARE@strGroupvarchar(1000)
/*默认当前页*/
IF@CurrentPage<1
SET@CurrentPage=1
/*设置分页参数.*/
SET@strPageSize=CAST(@PageSizeASvarchar(500))
SET@strStartRow=CAST(((@CurrentPage-1)*@PageSize+1) ASvarchar(500))
/*筛选以及分组语句.*/
IF@FilterISNOTNULLAND@Filter!=''
BEGIN
SET@strFilter=' WHERE '+@Filter+''
SET@strSimpleFilter=' AND '+@Filter+''
END
ELSE
BEGIN
SET@strSimpleFilter=''
SET@strFilter=''
END
IF@GroupISNOTNULLAND@Group!=''
SET@strGroup=' GROUP BY '+@Group+''
ELSE
SET@strGroup=''
/*执行查询语句*/
EXEC(
'
DECLARE @SortColumn '+@type+'
SET ROWCOUNT '+@strStartRow+'
SELECT @SortColumn='+@strSortColumn+' FROM '+@Tables+@strFilter+''+@strGroup+' ORDER BY '+@Sort+'
SET ROWCOUNT '+@strPageSize+'
SELECT '+@Fields+' FROM '+@Tables+' WHERE '+@strSortColumn+@operator+' @SortColumn '+@strSimpleFilter+''+@strGroup+' ORDER BY '+@Sort+'
')
GO
SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER OFF
GO
本控件类图
本控件UcpageControl类详细信息
本控件PageData类详细信息
本控件核心代码
一、数据源提供类PageData,主要负责与存储过程进行交互。
数据源提供(PageData)
#region 数据源提供(PageData)
///<summary>
/// 数据源提供
///</summary>
publicclass PageData
{
DataSet ds =null;
privateint _PageSize =50; //分页大小
privateint _PageIndex =1; //当前页
privateint _PageCount =0; //总页数
privateint _TotalCount =0; //总记录数
privatestring _QueryFieldName ="*"; //表字段FieldStr
privatebool _isQueryTotalCounts =true; //是否查询总的记录条数
privatestring _TableName =string.Empty; //表名
privatestring _OrderStr =string.Empty; //排序_SortStr
privatestring _QueryCondition =string.Empty; //查询的条件 RowFilter
privatestring _PrimaryKey =string.Empty; //主键
///<summary>
/// 是否查询总的记录条数
///</summary>
publicbool IsQueryTotalCounts
{
get { return _isQueryTotalCounts; }
set { _isQueryTotalCounts = value; }
}
///<summary>
/// 分页大小(每页显示多少条数据)
///</summary>
publicint PageSize
{
get
{
return _PageSize;
}
set
{
_PageSize = value;
}
}
///<summary>
/// 当前页
///</summary>
publicint PageIndex
{
get
{
return _PageIndex;
}
set
{
_PageIndex = value;
}
}
///<summary>
/// 总页数
///</summary>
publicint PageCount
{
get
{
return _PageCount;
}
}
///<summary>
/// 总记录数
///</summary>
publicint TotalCount
{
get
{
return _TotalCount;
}
}
///<summary>
/// 表名或视图名
///</summary>
publicstring TableName
{
get
{
return _TableName;
}
set
{
_TableName = value;
}
}
///<summary>
/// 表字段FieldStr
///</summary>
publicstring QueryFieldName
{
get
{
return _QueryFieldName;
}
set
{
_QueryFieldName = value;
}
}
///<summary>
/// 排序字段
///</summary>
publicstring OrderStr
{
get
{
return _OrderStr;
}
set
{
_OrderStr = value;
}
}
///<summary>
/// 查询条件
///</summary>
publicstring QueryCondition
{
get
{
return _QueryCondition;
}
set
{
_QueryCondition = value;
}
}
///<summary>
/// 主键
///</summary>
publicstring PrimaryKey
{
get
{
return _PrimaryKey;
}
set
{
_PrimaryKey = value;
}
}
///<summary>
/// 得到分页数据
///</summary>
///<param name="connectionstring">连接字符串</param>
///<returns>DataSet</returns>
public DataSet QueryDataTable(string connectionstring)
{
SqlParameter[] parameters = {
new SqlParameter("@Tables", SqlDbType.VarChar, 255),
new SqlParameter("@PrimaryKey" , SqlDbType.VarChar , 255),
new SqlParameter("@Sort", SqlDbType.VarChar , 255),
new SqlParameter("@CurrentPage", SqlDbType.Int ),
new SqlParameter("@PageSize", SqlDbType.Int ),
new SqlParameter("@Fields", SqlDbType.VarChar, 255),
new SqlParameter("@Filter", SqlDbType.VarChar, 1000),
new SqlParameter("@Group" , SqlDbType.VarChar, 1000)
};
parameters[0].Value = _TableName;
parameters[1].Value = _PrimaryKey;
parameters[2].Value = _OrderStr;
parameters[3].Value = PageIndex;
parameters[4].Value = PageSize;
parameters[5].Value =_QueryFieldName;
parameters[6].Value = _QueryCondition;
parameters[7].Value =string.Empty;
ds =null;
ds =new DataSet();
ds = DbHelperSQL.RunProcedure(connectionstring, "uspDividePage", parameters, "tbPageData");
if (_isQueryTotalCounts)
{
_TotalCount = GetTotalCount(connectionstring);
}
if (_TotalCount ==0)
{
_PageIndex =0;
_PageCount =0;
}
else
{
_PageCount = _TotalCount % _PageSize ==0? _TotalCount / _PageSize : _TotalCount / _PageSize +1;
if (_PageIndex > _PageCount)
{
_PageIndex = _PageCount;
parameters[4].Value = _PageSize;
ds = QueryDataTable(connectionstring);
}
}
return ds;
}
///<summary>
/// 得到总的记录数
///</summary>
///<param name="connectionstring">连接字符串</param>
///<returns>总的记录数</returns>
publicint GetTotalCount(string connectionstring)
{
string strSql =" select count(1) from "+_TableName;
if (_QueryCondition !=string.Empty)
{
strSql +=" where "+ _QueryCondition;
}
return Convert.ToInt32(DbHelperSQL.GetSingle(strSql.ToString(), connectionstring));
}
}
#endregion
窗体调用方法
一、设置窗体调用公共方法。
#region 绑定DataGridView
///<summary>
/// 绑定DataGridView
///</summary>
///<param name="sTb">表名</param>
///<param name="sPk">主键</param>
///<param name="sOrderField">排序字段</param>
///<param name="sWhere">查询条件</param>
///<param name="sQueryFieldName">字段列表</param>
///<returns>总记录数</returns>
private int dgvBind(string sTb, string sPk, string sOrderField, string sWhere, string sQueryFieldName)
{
pageData =null;
dtPub =null;
pageData =new PageData();
dtPub =new DataTable();
pageData.TableName = sTb;
pageData.PrimaryKey = sPk;
pageData.OrderStr = sOrderField;
pageData.PageIndex =this.ucPageControlTest.PageCurrent;
pageData.PageSize =200;
pageData.QueryCondition = sWhere;
pageData.QueryFieldName = sQueryFieldName;
dtPub = pageData.QueryDataTable(ConfigurationSettings.AppSettings["DbConnection"]).Tables["tbPageData"];
this.ucPageControlTest.bindingSource.DataSource = dtPub;
this.ucPageControlTest.bindingNavigator.BindingSource = ucPageControlTest.bindingSource;
dgvUcPageControlTest.DataSource =null;
dgvUcPageControlTest.DataSource =this.ucPageControlTest.bindingSource;
if (dgvUcPageControlTest.Rows.Count >0)
{
dgvUcPageControlTest[4, ucPageControlTest.bindingSource.Position].Selected =true;
}
return pageData.TotalCount;
}
#endregion
二、在控件的EventPaging事件代码中调用即可。
三、SqlServer测试数据代码如下:
-- =============================================
-- Author: EricHu QQ:80368704 WebSite:http://www.cnblogs.com/huyong/
-- Create date: 2010-12-18
-- Description: 原创企业级控件库之大数据量分页控件---测试数据
-- Modify Date: 2010-12-18
-- =============================================
/*一、创建数据库dbTest*/
CREATEDATABASE dbTest
go
/*二、创建数据表*/
USE[dbTest]
GO
CREATETABLE[dbo].[tbTestData](
[UniqueID][bigint]IDENTITY(20000,1) NOTNULL,
[CompanyName][varchar](200) COLLATE Chinese_PRC_CI_AS NULL,
[CompanyCode][varchar](50) COLLATE Chinese_PRC_CI_AS NULL,
[Address][varchar](500) COLLATE Chinese_PRC_CI_AS NULL,
[Owner][varchar](100) COLLATE Chinese_PRC_CI_AS NULL,
[Memo][varchar](2000) COLLATE Chinese_PRC_CI_AS NULL,
[InsetDataTime][datetime]NULLCONSTRAINT[DF_tbTestData_InsetDataTime]DEFAULT (getdate()),
CONSTRAINT[PK_tbTestData]PRIMARYKEYCLUSTERED
(
[UniqueID]ASC
)WITH (IGNORE_DUP_KEY =OFF) ON[PRIMARY]
) ON[PRIMARY]
GO
/*三、增加测试数据*/
declare@countbigint
select@count=1
while@count<=5000000
begin
insertinto tbTestData
values('Company'+cast(@countasvarchar),'CompanyCode'+cast(@countasvarchar)
,'Address'+cast(@countasvarchar),'Owner'+cast(@countasvarchar)
,'Memo'+cast(@countasvarchar),getdate())
select@count=@count+1
end
下面给出本控件完整代码
#region 版权信息 /*---------------------------------------------------------------------* // Copyright (C) 2010 http://www.cnblogs.com/huyong // 版权所有。 // 项目 名称:《Winform通用控件库》 // 文 件 名: UcPageControl.cs // 类 全 名: DotNet.Controls.UcPageControl // 描 述: 分页控件 // 创建 时间: 2010-06-05 // 创建人信息: [**** 姓名:胡勇 QQ:406590790 E-Mail:406590790@qq.com *****] *----------------------------------------------------------------------*/ #endregion using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Data.SqlClient; using System.Windows.Forms; using DotNet.Common; using DotNet.DBUtility; namespace DotNet.Controls { #region 委托申明 ///<summary> /// 申明委托 ///</summary> ///<param name="e"></param> ///<returns></returns> publicdelegateint EventPagingHandler(EventPagingArg e); #endregion #region 分页控件 ///<summary> /// 分页控件 /// /// 修改纪录(此分页控件经过多次修改,已趋于完美,可放心使用。) /// 2010-12-06 胡勇 对上一条、下一条、首条、末条数据导航的隐藏,因为控件本身已做了处理。 /// 2010-12-05 胡勇 对分页控件代码做了相应优化 /// 2010-06-05 胡勇 创建分页控件 /// ///<author> ///<name>胡勇</name> ///<QQ>406590790</QQ> ///<Email>406590790@qq.com</Email> ///</author> ///</summary> [ToolboxItem(true)] [DefaultEvent("EventPaging")] [ToolboxBitmap(typeof(UcPageControl), "DotNet.Controls.Images.UcPageControl.bmp")] [Description("分页控件")] publicpartialclass UcPageControl : UserControl { #region 申明事件 ///<summary> /// 单击移动到当前页上一末记录时发生 ///</summary> [Category("数据分页"), Description("单击移动到当前页上一末记录时发生。"),Browsable(false)] publicevent EventHandler OnBindingNavigatorMovePreviousItemClick; ///<summary> /// 单击移动到当前页第一条记录时发生 ///</summary> [Category("数据分页"), Description("单击移动到当前页第一条记录时发生。"), Browsable(false)] publicevent EventHandler OnBindingNavigatorMoveFirstItemClick; ///<summary> /// 单击移动到当前页下一条记录时发生 ///</summary> [Category("数据分页"), Description("单击移动到当前页下一条记录时发生。"), Browsable(false)] publicevent EventHandler OnBindingNavigatorMoveNextItemClick; ///<summary> /// 单击移动到当前页最后一条记录时发生 ///</summary> [Category("数据分页"), Description("单击移动到当前页最后一条记录时发生。"), Browsable(false)] publicevent EventHandler OnBindingNavigatorMoveLastItemClick; ///<summary> /// 单击各分页按钮(上一页、下一页、第一页、最后一页和转到某页)时发生 ///</summary> [Category("数据分页"), Description("分页时发生。")] publicevent EventPagingHandler EventPaging; #endregion #region 构造函数 public UcPageControl() { InitializeComponent(); } #endregion #region 属性 privateint _pageSize =50; //每页显示记录数 privateint _nMax =0; //总记录数 privateint _pageCount =0; //页数=总记录数/每页显示记录数 privateint _pageCurrent =0; //当前页号 ///<summary> /// 每页显示记录数 ///</summary> [Category("数据分页"), Description("每页显示记录数。"), Browsable(false)] publicint PageSize { get { return _pageSize; } set { _pageSize = value; GetPageCount();//页数 } } ///<summary> /// 记录总数 ///</summary> [Category("数据分页"), Description("记录总数。"),Browsable(false)] publicint NMax { get { return _nMax; } set { _nMax = value; GetPageCount(); } } ///<summary> /// 页数 ///</summary> [Category("数据分页"), Description("页数。"), Browsable(false)] publicint PageCount { get { return _pageCount; } set { _pageCount = value; } } ///<summary> /// 当前页号 ///</summary> [Category("数据分页"), Description("当前页号。"), Browsable(false)] publicint PageCurrent { get { return _pageCurrent; } set { _pageCurrent = value; } } #endregion #region 方法 [Category("数据分页"), Description("bindingNavigator。"), Browsable(false)] public BindingNavigator ToolBar { get { returnthis.bindingNavigator; } } ///<summary> /// 得到总页数 ///</summary> privatevoid GetPageCount() { if (this.NMax >0) { this.PageCount = Convert.ToInt32(Math.Ceiling(Convert.ToDouble(this.NMax) / Convert.ToDouble(this.PageSize))); } else { this.PageCount =0; } } ///<summary> /// 绑定分页控件(关键代码) ///</summary> publicvoid Bind() { if (this.EventPaging !=null) { this.NMax =this.EventPaging(new EventPagingArg(this.PageCurrent)); } if (this.PageCurrent >this.PageCount) { this.PageCurrent =this.PageCount; } if (this.PageCount ==1) { this.PageCurrent =1; } lblPageCount.Text =this.PageCount.ToString(); this.lblMaxPage.Text ="共"+this.NMax.ToString()+"条记录"; this.txtCurrentPage.Text =this.PageCurrent.ToString(); if (this.PageCurrent ==1) { this.btnPrev.Enabled =false; this.btnFirst.Enabled =false; } else { btnPrev.Enabled =true; btnFirst.Enabled =true; } if (this.PageCurrent ==this.PageCount) { this.btnLast.Enabled =false; this.btnNext.Enabled =false; } else { btnLast.Enabled =true; btnNext.Enabled =true; } if (this.NMax ==0) { btnNext.Enabled =false; btnLast.Enabled =false; btnFirst.Enabled =false; btnPrev.Enabled =false; } } #endregion #region 按钮事件 privatevoid btnFirst_Click(object sender, EventArgs e) { PageCurrent =1; this.Bind(); } privatevoid btnPrev_Click(object sender, EventArgs e) { PageCurrent -=1; if (PageCurrent <=0) { PageCurrent =1; } this.Bind(); } privatevoid btnNext_Click(object sender, EventArgs e) { this.PageCurrent +=1; if (PageCurrent > PageCount) { PageCurrent = PageCount; } this.Bind(); } privatevoid btnLast_Click(object sender, EventArgs e) { PageCurrent = PageCount; this.Bind(); } privatevoid btnGo_Click(object sender, EventArgs e) { if (this.txtCurrentPage.Text !=null&& txtCurrentPage.Text !="") { if (Int32.TryParse(txtCurrentPage.Text, out _pageCurrent)) { this.Bind(); } else { DialogHelper.ShowErrorMsg("输入数字格式错误!"); } } } privatevoid txtCurrentPage_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Enter) { this.Bind(); } } privatevoid bindingNavigatorMovePreviousItem_Click(object sender, EventArgs e) { if(OnBindingNavigatorMovePreviousItemClick !=null) { OnBindingNavigatorMovePreviousItemClick(this, null); } } privatevoid bindingNavigatorMoveFirstItem_Click(object sender, EventArgs e) { if (OnBindingNavigatorMoveFirstItemClick !=null) { OnBindingNavigatorMoveFirstItemClick(this, null); } } privatevoid bindingNavigatorMoveNextItem_Click(object sender, EventArgs e) { if (OnBindingNavigatorMoveNextItemClick !=null) { OnBindingNavigatorMoveNextItemClick(this, null); } } privatevoid bindingNavigatorMoveLastItem_Click(object sender, EventArgs e) { if (OnBindingNavigatorMoveLastItemClick !=null) { OnBindingNavigatorMoveLastItemClick(this, null); } } #endregion } #endregion #region 自定义事件数据基类 ///<summary> /// 自定义事件数据基类 ///</summary> publicclass EventPagingArg : EventArgs { privateint _intPageIndex; public EventPagingArg(int PageIndex) { _intPageIndex = PageIndex; } } #endregion #region 数据源提供(PageData) ///<summary> /// 数据源提供 ///</summary> publicclass PageData { DataSet ds =null; privateint _PageSize =50; //分页大小 privateint _PageIndex =1; //当前页 privateint _PageCount =0; //总页数 privateint _TotalCount =0; //总记录数 privatestring _QueryFieldName ="*"; //表字段FieldStr privatebool _isQueryTotalCounts =true; //是否查询总的记录条数 privatestring _TableName =string.Empty; //表名 privatestring _OrderStr =string.Empty; //排序_SortStr privatestring _QueryCondition =string.Empty; //查询的条件 RowFilter privatestring _PrimaryKey =string.Empty; //主键 ///<summary> /// 是否查询总的记录条数 ///</summary> publicbool IsQueryTotalCounts { get { return _isQueryTotalCounts; } set { _isQueryTotalCounts = value; } } ///<summary> /// 分页大小(每页显示多少条数据) ///</summary> publicint PageSize { get { return _PageSize; } set { _PageSize = value; } } ///<summary> /// 当前页 ///</summary> publicint PageIndex { get { return _PageIndex; } set { _PageIndex = value; } } ///<summary> /// 总页数 ///</summary> publicint PageCount { get { return _PageCount; } } ///<summary> /// 总记录数 ///</summary> publicint TotalCount { get { return _TotalCount; } } ///<summary> /// 表名或视图名 ///</summary> publicstring TableName { get { return _TableName; } set { _TableName = value; } } ///<summary> /// 表字段FieldStr ///</summary> publicstring QueryFieldName { get { return _QueryFieldName; } set { _QueryFieldName = value; } } ///<summary> /// 排序字段 ///</summary> publicstring OrderStr { get { return _OrderStr; } set { _OrderStr = value; } } ///<summary> /// 查询条件 ///</summary> publicstring QueryCondition { get { return _QueryCondition; } set { _QueryCondition = value; } } ///<summary> /// 主键 ///</summary> publicstring PrimaryKey { get { return _PrimaryKey; } set { _PrimaryKey = value; } } ///<summary> /// 得到分页数据 ///</summary> ///<param name="connectionstring">连接字符串</param> ///<returns>DataSet</returns> public DataSet QueryDataTable(string connectionstring) { SqlParameter[] parameters = { new SqlParameter("@Tables", SqlDbType.VarChar, 255), new SqlParameter("@PrimaryKey" , SqlDbType.VarChar , 255), new SqlParameter("@Sort", SqlDbType.VarChar , 255), new SqlParameter("@CurrentPage", SqlDbType.Int ), new SqlParameter("@PageSize", SqlDbType.Int ), new SqlParameter("@Fields", SqlDbType.VarChar, 255), new SqlParameter("@Filter", SqlDbType.VarChar, 1000), new SqlParameter("@Group" , SqlDbType.VarChar, 1000) }; parameters[0].Value = _TableName; parameters[1].Value = _PrimaryKey; parameters[2].Value = _OrderStr; parameters[3].Value = PageIndex; parameters[4].Value = PageSize; parameters[5].Value =_QueryFieldName; parameters[6].Value = _QueryCondition; parameters[7].Value =string.Empty; ds =null; ds =new DataSet(); ds = DbHelperSQL.RunProcedure(connectionstring, "uspDividePage", parameters, "tbPageData"); if (_isQueryTotalCounts) { _TotalCount = GetTotalCount(connectionstring); } if (_TotalCount ==0) { _PageIndex =0; _PageCount =0; } else { _PageCount = _TotalCount % _PageSize ==0? _TotalCount / _PageSize : _TotalCount / _PageSize +1; if (_PageIndex > _PageCount) { _PageIndex = _PageCount; parameters[4].Value = _PageSize; ds = QueryDataTable(connectionstring); } } return ds; } ///<summary> /// 得到总的记录数 ///</summary> ///<param name="connectionstring">连接字符串</param> ///<returns>总的记录数</returns> publicint GetTotalCount(string connectionstring) { string strSql =" select count(1) from "+_TableName; if (_QueryCondition !=string.Empty) { strSql +=" where "+ _QueryCondition; } return Convert.ToInt32(DbHelperSQL.GetSingle(strSql.ToString(), connectionstring)); } } #endregion }
作者:
RDIF
出处:
http://www.cnblogs.com/huyong/
Email:
406590790@qq.com
QQ:
406590790
微信:
13005007127(同手机号)
框架官网:
http://www.guosisoft.com/
http://www.rdiframework.net/
框架其他博客:
http://blog.csdn.net/chinahuyong
http://www.cnblogs.com/huyong
国思RDIF开发框架
,
给用户和开发者最佳的.Net框架平台方案,为企业快速构建跨平台、企业级的应用提供强大支持。
关于作者:系统架构师、信息系统项目管理师、DBA。专注于微软平台项目架构、管理和企业解决方案,多年项目开发与管理经验,曾多次组织并开发多个大型项目,在面向对象、面向服务以及数据库领域有一定的造诣。现主要从事基于
RDIF
框架的技术开发、咨询工作,主要服务于金融、医疗卫生、铁路、电信、物流、物联网、制造、零售等行业。
如有问题或建议,请多多赐教!
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