asp.net 调用 存储过程（带output 参数）

存储过程：

--建数据库

create database test

--建表

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[laolao]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[laolao]
GO

CREATE TABLE [dbo].[laolao] (
 [MyName] [int] NOT NULL ,
 [Mycompany] [varchar] (20) COLLATE Chinese_PRC_CI_AS NULL
) ON [PRIMARY]
GO

--在表里面插入1000记录

SET QUOTED_IDENTIFIER ON 
GO
SET ANSI_NULLS ON 
GO



create    proc ps_InsertRow
as
	declare @i INT

	set @i=1000

	while @i>0
	begin 
	insert into laolao values(cast(@i as varchar(10)),cast(@i as varchar(10))+'whn')
	set @i=@i-1
	end

GO
SET QUOTED_IDENTIFIER OFF 
GO
SET ANSI_NULLS ON 
GO

--一个带output参数的存储过程

SET QUOTED_IDENTIFIER ON 
GO
SET ANSI_NULLS ON 
GO


ALTER   proc DepartPage
@PageIndex int,
@PageSize int,
@SumCount int output

as 

begin

declare @RecordCount  int
set @RecordCount=@PageIndex * @PageSize
set @SumCount=(select Count(*) from laolao)
SET ROWCOUNT @RecordCount
	select * into #TempTable from laolao order by MyName asc
SET ROWCOUNT @PageSize
select   * from #TempTable order by MyName desc
SET ROWCOUNT 0
	drop table #TempTable
end


GO
SET QUOTED_IDENTIFIER OFF 
GO
SET ANSI_NULLS ON 
GO
c#代码（在App_Code中添加）
 

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
/// 
/// Class1 的摘要说明
/// 
public class db
{
	public db()
	{
		//
		// TODO: 在此处添加构造函数逻辑
		//
	}
    public static DataTable GetList(int PageIndex, int PageSize, out int SumCount)
    {
        SumCount = 0;
        //string sqlstr = ConfigurationManager.ConnectionStrings["sqlstr"].ConnectionString;
        SqlConnection con = new SqlConnection("server=.;database=test;uid=sa;pwd=sa");
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = con;
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.CommandText = "DepartPage";
        SqlParameter[] par ={ new SqlParameter("@PageIndex", DbType.Int32), new SqlParameter("@PageSize", DbType.Int32), new SqlParameter("@SumCount", DbType.Int32) };
        

        par[0].Value = PageIndex;
        par[1].Value = PageSize;
        par[2].Value = SumCount;
        par[2].Direction = ParameterDirection.Output;
        for (int i = 0; i < par.Length; i++)
        {
            cmd.Parameters.Add(par[i]);
        }
        SqlDataAdapter dataAdapter = new SqlDataAdapter(cmd);
        DataTable ds = new DataTable();
        dataAdapter.Fill(ds);
        SumCount = Convert.ToInt32( cmd.Parameters["@SumCount"].Value);
        return ds;
       
    }
    
}

//页面调用

 int SumCount=0;
        db.GetList(1, 10, out  SumCount);