c#中获取存储过程方法

1         /// <summary>
 2         /// 校验用户
 3         /// </summary>
 4         /// <param name="user">用户信息</param>
 5         /// <returns></returns>
 6         public static int VerifyUser(clsUser user)
7         {
8             int iRet;
9             string sql = String.Format("EXECUTE VerifyUser @myVerifyReader OUTPUT,'{0}','{1}'",user.username,user.password); //执行的T-SQL串
10             SqlCommand scmd = new SqlCommand(sql, conn);
11             scmd.Parameters.Add(new SqlParameter("@myVerifyReader",SqlDbType.Int));
12             scmd.Parameters["@myVerifyReader"].Direction = ParameterDirection.Output;
13             //
14
15             DBOpen(conn);
16             //在返回值上有问题
17             scmd.ExecuteNonQuery();
18             iRet = (int)scmd.Parameters["@myVerifyReader"].Value;
19             DBClose(conn);
20             return iRet;
21         }

/*
* VerifyUser 存储过程
* 用途：验证用户登陆
*/
CREATE PROCEDURE VerifyUser
(
@myVerifyReader int OUTPUT, --返回结果
    @username varchar(50), --用户名
    @userpassword varchar(50) --用户密码
)
AS
IF EXISTS(SELECT [id] FROM [Users] WHERE username = @username AND userpassword = @userpassword)
SET @myVerifyReader = 0 --通过验证

ELSE IF EXISTS(SELECT [id] FROM [Users] WHERE username = @username)
SET @myVerifyReader = 1 --用户存在，密码不正确
ELSE
SET @myVerifyReader = 2 --用户不存在

RETURN  isnull(@myVerifyReader,3)
-------------------------------------------------
GO