无过载需要0参数存储过程

背景： 我的存储过程'GetAtdRecord_Sp'可选地接受参数'EmplID'，否则默认值为空。它在SQl服务器管理工作室工作，即使我没有提供任何价值，因为我想做的事情。无过载需要0参数存储过程

exec GetAtdRecord_Sp  // This works 
exec GetAtdRecord_Sp 23 // This works too with value.

问题：但是当我通过LINQ的从Asp.net MVC应用程序中执行它的SQL代码，然后它需要一个参数，并抛出错误：

Error 1 No overload for method 'GetAtdRecord_Sp' takes 0 arguments

，如果我通过工作值如下所示。

代码：使用EmployeeAttendance_app.Models ;

namespace EmployeeAttendance_app.Controllers 
{ 
    public class HomeController : Controller 
    { 
     public ActionResult Index() 
     { 
      ViewBag.Message = "Precise Technology Consultants"; 
      var DataContext = new EmployeeAtdDataContext(); 
      //var EmployeeAtd = DataContext.GetAttendance_Sp(); 
      IEnumerable<GetAtdRecord_SpResult> EmployeeAtd = DataContext.GetAtdRecord_Sp(22).ToList(); 
      return View(EmployeeAtd); 
     }

但它不起作用，当我离开GetAtdRecord_Sp（）这样的空。

存储过程：

ALTER PROCEDURE [dbo].[GetAtdRecord_Sp] 
    @EmplID INT = NULL 
AS 
BEGIN 
    -- SET NOCOUNT ON added to prevent extra result sets from 
    -- interfering with SELECT statements. 
    SET NOCOUNT ON; 

    IF (@EmplID IS NULL) --IF block starts 
    BEGIN 
     WITH times 
     AS (
      SELECT t1.EmplID 
       ,t3.EmplName 
       ,min(t1.RecTime) AS InTime 
       ,max(t2.RecTime) AS [TimeOut] 
       ,t1.RecDate AS [DateVisited] 
      FROM AtdRecord t1 
      INNER JOIN AtdRecord t2 ON t1.EmplID = t2.EmplID 
       AND t1.RecDate = t2.RecDate 
       AND t1.RecTime < t2.RecTime 
      INNER JOIN HrEmployee t3 ON t3.EmplID = t1.EmplID 
      GROUP BY t1.EmplID 
       ,t3.EmplName 
       ,t1.RecDate 
      ) 
     SELECT EmplID 
      ,EmplName 
      ,InTime 
      ,[TimeOut] 
      ,[DateVisited] 
      ,CASE 
       WHEN minpart = 0 
        THEN CAST(hourpart AS NVARCHAR(200)) + ':00' 
       ELSE CAST((hourpart - 1) AS NVARCHAR(200)) + ':' + CAST(minpart AS NVARCHAR(200)) 
       END AS 'total time' 
     FROM (
      SELECT EmplID 
       ,EmplName 
       ,InTime 
       ,[TimeOut] 
       ,[DateVisited] 
       ,DATEDIFF(Hour, InTime, [TimeOut]) AS hourpart 
       ,DATEDIFF(minute, InTime, [TimeOut]) % 60 AS minpart 
      FROM times 
      ) source 
    END --IF block ends 
    ELSE 
    BEGIN --Else block stats 
     WITH times 
     AS (
      SELECT t1.EmplID 
       ,t3.EmplName 
       ,min(t1.RecTime) AS InTime 
       ,max(t2.RecTime) AS [TimeOut] 
       ,t1.RecDate AS [DateVisited] 
      FROM AtdRecord t1 
      INNER JOIN AtdRecord t2 ON t1.EmplID = t2.EmplID 
       AND t1.RecDate = t2.RecDate 
       AND t1.RecTime < t2.RecTime 
      INNER JOIN HrEmployee t3 ON t3.EmplID = t1.EmplID 
      GROUP BY t1.EmplID 
       ,t3.EmplName 
       ,t1.RecDate 
      ) 
     SELECT EmplID 
      ,EmplName 
      ,InTime 
      ,[TimeOut] 
      ,[DateVisited] 
      ,CASE 
       WHEN minpart = 0 
        THEN CAST(hourpart AS NVARCHAR(200)) + ':00' 
       ELSE CAST((hourpart - 1) AS NVARCHAR(200)) + ':' + CAST(minpart AS NVARCHAR(200)) 
       END AS 'total time' 
     FROM (
      SELECT EmplID 
       ,EmplName 
       ,InTime 
       ,[TimeOut] 
       ,[DateVisited] 
       ,DATEDIFF(Hour, InTime, [TimeOut]) AS hourpart 
       ,DATEDIFF(minute, InTime, [TimeOut]) % 60 AS minpart 
      FROM times 
      ) source 
     WHERE EmplID = @EmplID 
    END --Else block ends here 
END

来源

2014-01-21 Evil rising