我已经创建了Complex Types
,即GetIsActive_Result in DemoModel.edmx
。它有一个Scalar Property
,即邀请ID类型Int32。我创建了一个执行存储过程的函数。在这里我的功能。不能隐式转换int?复杂类型
public GetIsActive_Result GetIsActiveUser(string email)
{
GetIsActive_Result result = null;
System.Data.Objects.ObjectParameter InvitationID;
InvitationID = new System.Data.Objects.ObjectParameter("InvitationID", -1);
var results = this.DataContext.GetIsActiveUser(email, InvitationID);
if (results != null)
{
result = results.FirstOrDefault();
}
return result;
}
该功能执行存储过程即GetIsActiveUser。
USE [Demo]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER Procedure [dbo].[GetIsActiveUser]
(
@Email NCHAR(100),
@InvitationID INT OUTPUT
)
AS
BEGIN
SET NOCOUNT ON;
BEGIN TRY
IF EXISTS(select * from Users,Invitations where [email protected] and IsActive='Active' and Invitations.Email != @Email)
BEGIN
SET @InvitationID=1
END
ELSE IF EXISTS(select * from Users,Invitations where [email protected] and IsActive='InActive' and Invitations.Email = @Email)
BEGIN
SET @InvitationID=0
END
SELECT @InvitationID AS InvitationID
END TRY
BEGIN CATCH
IF @@TRANCOUNT > 0
BEGIN
ROLLBACK
END
EXEC ThrowError
END CATCH
END
这是一个简单的存储过程,它返回InvitationID。我在线result = results.FirstOrDefault();
不能隐式转换类型'int?' 'DemoAppWebService.GetIsActive_Result'
我该如何解决这个错误?我的代码出了什么问题?
为什么(INT作为复杂类型的复杂混淆)? –
其实最终结果会来''ObjectParameter'' InvitationID' Rite ??是否是参数?或者函数GetIsActiveUser的返回对象是如何构造的?但只有诠释返回????? –