EF怎么获取SQL存储过程的output或return的值

[qfbwj]

我调的一个分页的存储过程，代码如下：
ALTER PROCEDURE [dbo].[sp_Page]
/*
***************************************************************
参数说明:
1.Tables :表名称,视图 , 多表查询可用视图做
2.PrimaryKey :主关键字
3.Sort :排序语句，不带Order By 比如：NewsID Desc,OrderRows Asc
4.CurrentPage :当前页码
5.PageSize :分页尺寸
6.Fields :查询字段 , 默认为 *
6.Filter :过滤语句，不带Where
7.Group :Group语句,不带Group By
***************************************************************/
(
@Tables varchar(1000),
@PrimaryKey varchar(100),
@Sort varchar(200) = NULL,
@CurrentPage int = 1,
@PageSize int = 10,
@Fields varchar(1000) = '*',
@Filter varchar(1000) = NULL,
@Group varchar(1000) = NULL
--@TotalRecordCount int output
)
AS
/*默认排序*/
IF @Sort IS NULL OR @Sort = ''
SET @Sort = @PrimaryKey
DECLARE @SortTable varchar(100)
DECLARE @SortName varchar(100)
DECLARE @strSortColumn varchar(200)
DECLARE @operator char(2)
DECLARE @type varchar(100)
DECLARE @prec int
DECLARE @sql nvarchar(1000)
DECLARE @paramDefine nvarchar(100)
DECLARE @TotalRecordCount int

/******************** 数据表中总记录数 ***********************/
SET @sql = 'SELECT @TotalRecordCount = COUNT(*) FROM ' + @Tables + ' WHERE 1=1'
IF @Filter IS NOT NULL AND @Filter <> ''
SET @sql = @sql + ' AND ' + @Filter
SET @paramDefine = '@TotalRecordCount INT OUTPUT'
EXEC SP_EXECUTESQL @sql,@paramDefine,@TotalRecordCount OUTPUT
/*************************************************************/


/*设定排序语句.*/
IF CHARINDEX('DESC',@Sort)>0
BEGIN
SET @strSortColumn = REPLACE(@Sort, 'DESC', '')
SET @operator = '<='
END
ELSE
BEGIN
IF CHARINDEX('ASC', @Sort) = 0
SET @strSortColumn = REPLACE(@Sort, 'ASC', '')
SET @operator = '>='
END

IF CHARINDEX('.', @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 = @SortTable AND c.name = @SortName
IF CHARINDEX('char', @type) > 0
SET @type = @type + '(' + CAST(@prec AS varchar) + ')'
DECLARE @strPageSize varchar(50)
DECLARE @strStartRow varchar(50)
DECLARE @strFilter varchar(1000)
DECLARE @strSimpleFilter varchar(1000)
DECLARE @strGroup varchar(1000)

/*默认当前页*/
IF @CurrentPage < 1
SET @CurrentPage = 1

/*设置分页参数.*/
SET @strPageSize = CAST(@PageSize AS varchar(50))
SET @strStartRow = CAST(((@CurrentPage - 1)*@PageSize + 1) AS varchar(50))

/*筛选以及分组语句.*/
IF @Filter IS NOT NULL AND @Filter != ''
BEGIN
SET @strFilter = ' WHERE ' + @Filter + ' '
SET @strSimpleFilter = ' AND ' + @Filter + ' '
END
ELSE
BEGIN
SET @strSimpleFilter = ''
SET @strFilter = ''
END

IF @Group IS NOT NULL AND @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 + '
'
)
return @TotalRecordCount
GO


在CS文件里调用代码如下：

DBConn db = new DBConn();

SqlParameter[] uiPage = new SqlParameter[8];
uiPage[0] = new SqlParameter("@Tables", "userInfo");
uiPage[1] = new SqlParameter("@PrimaryKey", "userID");
uiPage[2] = new SqlParameter("@Sort", "userID");
uiPage[3] = new SqlParameter("@CurrentPage", page);
uiPage[4] = new SqlParameter("@PageSize", columnsMax);
uiPage[5] = new SqlParameter("@Fields", "*");
uiPage[6] = new SqlParameter("@Filter", "delFlag=0");
uiPage[7] = new SqlParameter("@TotalRecordCount", 0);
uiPage[7].Direction = System.Data.ParameterDirection.ReturnValue;

var Ulist = db.userInfo.SqlQuery("exec sp_Page @Tables,@PrimaryKey,@Sort,@CurrentPage,@PageSize,@Fields,@Filter,@Group", uiPage).ToList();
totalcolumns = int.Parse(uiPage[8].Value.ToString());

rpList.DataSource = Ulist;
rpList.DataBind();


数据列表获取和显示都正常，但是记录总数取不到，哪位大神帮忙看看，感谢。

[範先森]

param = new SqlParameter("@RETURN", SqlDbType.Int); param.Direction =ParameterDirection.ReturnValue; foreach (SqlParameter param in cmd.Parameters) { if (param.Direction == ParameterDirection.ReturnValue) { r = param.Value; } } 这样肯定能获取到吧

[Xanl]

按照你的习惯、为什么不用ADO呢？ 如果用EF DBFirst、存储过程直接就可以'点'出来、代码生成器帮你做好了、甚至返回值的类型都给你定义好了

[myhope88]

直接执行存储过程，然后返回输出参数值

[A_tanying]

调用时要接收的值要这样 var Ulist = db.userInfo.SqlQuery("exec sp_Page @Tables,@PrimaryKey,@Sort,@CurrentPage,@PageSize,@Fields,@Filter,@Group out", uiPage).ToList();