SQL分页ROW_NUMBER() OVER/TOP MAX/TOP MIN存贮过程调用方法

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.Common;
using System.Data;
using System.Linq;


namespace Pub.Class {

public class PagerProc {

private static int cacheSeconds = 1440;

public static IList<TResult> ToList<TResult>(int pageIndex,int pageSize,string tableName,string pk,string fieldList,string sortList, bool isDescSort,string where,bool isDist,out int totalRecords, bool useCache) where TResult : class,new() {
if (string.IsNullOrEmpty(fieldList)) fieldList = "*";
totalRecords
= 0; IList<TResult> list = null;
string cacheNameKey = string.Empty; string cacheRecordsKey = string.Empty;
if (useCache) {
string cacheName = "{2}Cache_SelectPageList_{0}_{1}_{3}_{4}_{5}_{6}_{7}_{8}";
string cacheRecords = "{2}Cache_RecordsSelectPageList_{0}_{1}_{3}_{4}_{5}_{6}_{7}_{8}";
cacheNameKey
= string.Format(cacheName, pageIndex, pageSize, tableName, pk, fieldList, sortList, isDescSort, where, isDist);
cacheRecordsKey
= string.Format(cacheRecords, pageIndex, pageSize, tableName, pk, fieldList, sortList, isDescSort, where, isDist);
list
= (IList<TResult>)Cache2.Get(cacheNameKey);
if (list != null) { totalRecords = (int)Cache2.Get(cacheRecordsKey); return list; }
}

DbParameter[] dbParams
= {
Data.MakeInParam(
"@page", (DbType)SqlDbType.Int, 4, pageIndex),
Data.MakeInParam(
"@pageSize", (DbType)SqlDbType.Int, 4, pageSize),
Data.MakeInParam(
"@tblName", (DbType)SqlDbType.NVarChar, 2000, tableName),
Data.MakeInParam(
"@ID", (DbType)SqlDbType.NVarChar, 150, pk),
Data.MakeInParam(
"@fldName", (DbType)SqlDbType.NVarChar, 500, fieldList),
Data.MakeInParam(
"@fldSort", (DbType)SqlDbType.NVarChar, 200, sortList),
Data.MakeInParam(
"@Sort", (DbType)SqlDbType.Bit, 1, isDescSort),
Data.MakeInParam(
"@strCondition", (DbType)SqlDbType.NVarChar, 1000, where),
Data.MakeInParam(
"@Dist", (DbType)SqlDbType.Bit, 1, isDist),
Data.MakeOutParam(
"@Counts", (DbType)SqlDbType.Int, totalRecords),
};
list
= Data.GetDbDataReader("getPagerTopMAX", dbParams).ToList<TResult>();
if (list == null) return null;
totalRecords
= (int)dbParams[9].Value;

if (useCache) {
Cache2.Insert(cacheNameKey, list, cacheSeconds);
Cache2.Insert(cacheRecordsKey, totalRecords, cacheSeconds);
}
return list;
}

public static IList<TResult> ToList<TResult>(int pageIndex,int pageSize,string tableName,string pk,string fieldList,string where,out int totalRecords, bool useCache) where TResult : class,new() {
return ToList<TResult>(pageIndex, pageSize, tableName, pk, fieldList, pk, true, where, false, out totalRecords, useCache);
}

public static IList<TResult> ToList<TResult>(int pageIndex,int pageSize,string tableName,string pk,string fieldList,string where,out int totalRecords) where TResult : class,new() {
return ToList<TResult>(pageIndex, pageSize, tableName, pk, fieldList, where, out totalRecords, false);
}

public static IList<TResult> ToList<TResult>(int pageIndex,int pageSize,string tableName, string fieldList,string where,string groupBy,string orderBy,out int totalRecords, bool useCache) where TResult : class,new() {
if (string.IsNullOrEmpty(fieldList)) fieldList = "*";
totalRecords
= 0; IList<TResult> list = null;
string cacheNameKey = string.Empty; string cacheRecordsKey = string.Empty;
if (useCache) {
string cacheName = "{2}Cache_SelectPageList_{0}_{1}_{3}_{4}_{5}_{6}";
string cacheRecords = "{2}Cache_RecordsSelectPageList_{0}_{1}_{3}_{4}_{5}_{6}";
cacheNameKey
= string.Format(cacheName, pageIndex, pageSize, tableName, fieldList, where, groupBy, orderBy);
cacheRecordsKey
= string.Format(cacheRecords, pageIndex, pageSize, tableName, fieldList, where, groupBy, orderBy);
list
= (IList<TResult>)Cache2.Get(cacheNameKey);
if (list != null) { totalRecords = (int)Cache2.Get(cacheRecordsKey); return list; }
}

DbParameter[] dbParams
= {
Data.MakeInParam(
"@PageIndex", (DbType)SqlDbType.Int, 4, pageIndex),
Data.MakeInParam(
"@PageSize", (DbType)SqlDbType.Int, 4, pageSize),
Data.MakeInParam(
"@Tables", (DbType)SqlDbType.NVarChar, 1000, tableName),
Data.MakeInParam(
"@Fields", (DbType)SqlDbType.NVarChar, 2000, fieldList),
Data.MakeInParam(
"@Where", (DbType)SqlDbType.NVarChar, 2000, where),
Data.MakeInParam(
"@GroupBy", (DbType)SqlDbType.NVarChar, 2000, groupBy),
Data.MakeInParam(
"@OrderBy", (DbType)SqlDbType.NVarChar, 1000, orderBy),
Data.MakeOutParam(
"@ReturnCount", (DbType)SqlDbType.Int, totalRecords),
};
list
= Data.GetDbDataReader("getPagerROWOVER", dbParams).ToList<TResult>();
if (list == null) return null;
totalRecords
= (int)dbParams[7].Value;

if (useCache) {
Cache2.Insert(cacheNameKey, list, cacheSeconds);
Cache2.Insert(cacheRecordsKey, totalRecords, cacheSeconds);
}
return list;
}
}
}


 

posted @ 2010-07-09 21:47  熊哥  阅读(1120)  评论(3编辑  收藏  举报