asp.net中如何调用sql存储过程实现分页
首先看下面的代码创建存储过程 1、创建存储过程,语句如下: CREATE PROC P_viewPage @TableName VARCHAR(200), --表名 @FieldList VARCHAR(2000), --显示列名,如果是全部字段则为* @PrimaryKey VARCHAR(100), -
<p>首先看下面的代码创建存储过程</p>
1、创建存储过程,语句如下:
CREATE PROC P_viewPage
@TableName VARCHAR(200), --表名
@FieldList VARCHAR(2000), --显示列名,如果是全部字段则为*
@PrimaryKey VARCHAR(100), --单一主键或唯一值键
@Where VARCHAR(2000), --查询条件 不含'where'字符,如id>10 and len(userid)>9
@Order VARCHAR(1000), --排序 不含'order by'字符,如id asc,userid desc,必须指定asc或desc
--注意当@SortType=3时生效,记住一定要在最后加上主键,否则会让你比较郁闷
@SortType INT, --排序规则 1:正序asc 2:倒序desc 3:多列排序方法
@RecorderCount INT, --记录总数 0:会返回总记录
@PageSize INT, --每页输出的记录数
@PageIndex INT, --当前页数
@TotalCount INT OUTPUT, --记返回总记录
@TotalPageCount INT OUTPUT --返回总页数
AS
SET NOCOUNT ON
IF ISNULL(@TotalCount,'') = '' SET @TotalCount = 0 SET @Order = RTRIM(LTRIM(@Order)) SET @PrimaryKey = RTRIM(LTRIM(@PrimaryKey)) SET @FieldList = REPLACE(RTRIM(LTRIM(@FieldList)),' ','')
WHILE CHARINDEX(', ',@Order) > 0 OR CHARINDEX(' ,',@Order) > 0 BEGIN SET @Order = REPLACE(@Order,', ',',') SET @Order = REPLACE(@Order,' ,',',') END
IF ISNULL(@TableName,'') = '' OR ISNULL(@FieldList,'') = ''
OR ISNULL(@PrimaryKey,'') = ''
OR @SortType < 1 OR @SortType >3
OR @RecorderCount < 0 OR @PageSize < 0 OR @PageIndex < 0
BEGIN
PRINT('ERR_00')
RETURN
END
IF @SortType = 3 BEGIN IF (UPPER(RIGHT(@Order,4))!=' ASC' AND UPPER(RIGHT(@Order,5))!=' DESC') BEGIN PRINT('ERR_02') RETURN END END
DECLARE @new_where1 VARCHAR(1000)
DECLARE @new_where2 VARCHAR(1000)
DECLARE @new_order1 VARCHAR(1000)
DECLARE @new_order2 VARCHAR(1000)
DECLARE @new_order3 VARCHAR(1000)
DECLARE @Sql VARCHAR(8000)
DECLARE @SqlCount NVARCHAR(4000)
IF ISNULL(@where,'') = '' BEGIN SET @new_where1 = ' ' SET @new_where2 = ' WHERE ' END ELSE BEGIN SET @new_where1 = ' WHERE ' + @where SET @new_where2 = ' WHERE ' + @where + ' AND ' END
IF ISNULL(@order,'') = '' OR @SortType = 1 OR @SortType = 2 BEGIN IF @SortType = 1 BEGIN SET @new_order1 = ' ORDER BY ' + @PrimaryKey + ' ASC' SET @new_order2 = ' ORDER BY ' + @PrimaryKey + ' DESC' END IF @SortType = 2 BEGIN SET @new_order1 = ' ORDER BY ' + @PrimaryKey + ' DESC' SET @new_order2 = ' ORDER BY ' + @PrimaryKey + ' ASC' END END ELSE BEGIN SET @new_order1 = ' ORDER BY ' + @Order END
IF @SortType = 3 AND CHARINDEX(','+@PrimaryKey+' ',','+@Order)>0
BEGIN
SET @new_order1 = ' ORDER BY ' + @Order
SET @new_order2 = @Order + ','
SET @new_order2 = REPLACE(REPLACE(@new_order2,'ASC,','{ASC},'),'DESC,','{DESC},')
SET @new_order2 = REPLACE(REPLACE(@new_order2,'{ASC},','DESC,'),'{DESC},','ASC,')
SET @new_order2 = ' ORDER BY ' + SUBSTRING(@new_order2,1,LEN(@new_order2)-1)
IF @FieldList <> '*'
BEGIN
SET @new_order3 = REPLACE(REPLACE(@Order + ',','ASC,',','),'DESC,',',')
SET @FieldList = ',' + @FieldList
WHILE CHARINDEX(',',@new_order3)>0
BEGIN
IF CHARINDEX(SUBSTRING(','+@new_order3,1,CHARINDEX(',',@new_order3)),','+@FieldList+',')>0
BEGIN
SET @FieldList =
@FieldList + ',' + SUBSTRING(@new_order3,1,CHARINDEX(',',@new_order3))
END
SET @new_order3 =
SUBSTRING(@new_order3,CHARINDEX(',',@new_order3)+1,LEN(@new_order3))
END
SET @FieldList = SUBSTRING(@FieldList,2,LEN(@FieldList))
END
END
SET @SqlCount = 'SELECT @TotalCount=COUNT(),@TotalPageCount=CEILING((COUNT()+0.0)/'
-
CAST(@PageSize AS VARCHAR)+') FROM ' + @TableName + @new_where1 IF @RecorderCount = 0 BEGIN EXEC SP_EXECUTESQL @SqlCount,N'@TotalCount INT OUTPUT,@TotalPageCount INT OUTPUT', @TotalCount OUTPUT,@TotalPageCount OUTPUT END ELSE BEGIN SELECT @TotalCount = @RecorderCount
ENDIF @PageIndex > CEILING((@TotalCount+0.0)/@PageSize) BEGIN SET @PageIndex = CEILING((@TotalCount+0.0)/@PageSize) END
IF @PageIndex = 1 OR @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize) BEGIN IF @PageIndex = 1 --返回第一页数据 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '
- @TableName + @new_where1 + @new_order1 END IF @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize) --返回最后一页数据 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('
- 'SELECT TOP ' + STR(ABS(@PageSize*@PageIndex-@TotalCount-@PageSize))
- ' ' + @FieldList + ' FROM '
- @TableName + @new_where1 + @new_order2 + ' ) AS TMP '
- @new_order1
END END ELSE BEGIN IF @SortType = 1 --仅主键正序排序 BEGIN IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '- @TableName + @new_where2 + @PrimaryKey + ' > '
- '(SELECT MAX(' + @PrimaryKey + ') FROM (SELECT TOP '
- STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey
- ' FROM ' + @TableName
- @new_where1 + @new_order1 +' ) AS TMP) '+ @new_order1 END ELSE --反向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('
- 'SELECT TOP ' + STR(@PageSize) + ' '
- @FieldList + ' FROM '
- @TableName + @new_where2 + @PrimaryKey + ' < '
- '(SELECT MIN(' + @PrimaryKey + ') FROM (SELECT TOP '
- STR(@TotalCount-@PageSize*@PageIndex) + ' ' + @PrimaryKey
- ' FROM ' + @TableName
- @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2
- ' ) AS TMP ' + @new_order1 END END IF @SortType = 2 --仅主键反序排序 BEGIN IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '
- @TableName + @new_where2 + @PrimaryKey + ' < '
- '(SELECT MIN(' + @PrimaryKey + ') FROM (SELECT TOP '
- STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey +' FROM '+ @TableName
- @new_where1 + @new_order1 + ') AS TMP) '+ @new_order1
END ELSE --反向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM (' - 'SELECT TOP ' + STR(@PageSize) + ' '
- @FieldList + ' FROM '
- @TableName + @new_where2 + @PrimaryKey + ' > '
- '(SELECT MAX(' + @PrimaryKey + ') FROM (SELECT TOP '
- STR(@TotalCount-@PageSize*@PageIndex) + ' ' + @PrimaryKey
- ' FROM ' + @TableName
- @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2
- ' ) AS TMP ' + @new_order1
END
END
IF @SortType = 3 --多列排序,必须包含主键,且放置最后,否则不处理 BEGIN IF CHARINDEX(',' + @PrimaryKey + ' ',',' + @Order) = 0 BEGIN PRINT('ERR_02') RETURN END IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( ' - 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '
- ' SELECT TOP ' + STR(@PageSize*@PageIndex) + ' ' + @FieldList
- ' FROM ' + @TableName + @new_where1 + @new_order1 + ' ) AS TMP '
- @new_order2 + ' ) AS TMP ' + @new_order1 END ELSE --反向检索 BEGIN SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '
- 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '
- ' SELECT TOP ' + STR(@TotalCount-@PageSize*@PageIndex+@PageSize) + ' ' + @FieldList
- ' FROM ' + @TableName + @new_where1 + @new_order2 + ' ) AS TMP '
- @new_order1 + ' ) AS TMP ' + @new_order1 END END END PRINT(@Sql) EXEC(@Sql) GO
2、SQL Server 中调用测试代码
--执行存储过程
declare @TotalCount int, @TotalPageCount int exec P_viewPage 'T_Module','*','ModuleID','','',1,0,10,1,@TotalCount output,@TotalPageCount output Select @TotalCount,@TotalPageCount;
asp.net 代码实现:
#region ===========通用分页存储过程===========
public static DataSet RunProcedureDS(string connectionString, string storedProcName, IDataParameter[] parameters, string tableName)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
DataSet dataSet = new DataSet();
connection.Open();
SqlDataAdapter sqlDA = new SqlDataAdapter();
sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
sqlDA.Fill(dataSet, tableName);
connection.Close();
return dataSet;
}
}
///
parameters[0].Value = tblName; parameters[1].Value = strGetFields; parameters[2].Value = primaryKey; parameters[3].Value = strWhere; parameters[4].Value = strOrder; parameters[5].Value = sortType; parameters[6].Value = recordCount; parameters[7].Value = PageSize; parameters[8].Value = PageIndex; parameters[9].Value = totalCount; parameters[9].Direction = ParameterDirection.Output; parameters[10].Value = totalPageCount; parameters[10].Direction = ParameterDirection.Output;
DataSet ds = RunProcedureDS(connectionString, "P_viewPage", parameters, "PageListTable"); totalCount = int.Parse(parameters[9].Value.ToString()); totalPageCount = int.Parse(parameters[10].Value.ToString()); return ds; } #endregion DataSet ds = SqlHelper.PageList(SqlHelper.LocalSqlServer, "T_User", "*", "UserID", "", "", 1, 0, pageSize, 1, ref totalCount, ref totalPageCount); this.RptData.DataSource = ds; this.RptData.DataBind();
以上内容就是本文介绍asp.net中如何调用sql存储过程实现分页的全部内容,希望对大家今后的学习有所帮助,当然方法不止本文所述,欢迎与大家分享好的方案。