C# 无法在lambda表达式中转换此查询
我一直坚持将此查询转换为lambda表达式C# 无法在lambda表达式中转换此查询,c#,lambda,C#,Lambda,我一直坚持将此查询转换为lambda表达式 SELECT Timesheet_Detail_Id, Date, Proj_Id, Task_Id, Ticket_No, Description, Hours, IsBillable, Billing_Hrs, Link_To, Status_Id, Timesheet_Id, flag, Remarks, EntryDate FROM dbo.Timesheet_details WHERE (Link_
SELECT Timesheet_Detail_Id, Date, Proj_Id, Task_Id, Ticket_No, Description, Hours, IsBillable, Billing_Hrs, Link_To, Status_Id, Timesheet_Id, flag, Remarks, EntryDate
FROM dbo.Timesheet_details
WHERE (Link_To = 7) OR
(Link_To =
(SELECT User_Id FROM dbo.User_Details
WHERE(Leader_User_Id = 7)))
我的尝试:-
int linkto=Convert.ToInt32(Session["login_user_Id"]);
var list=de.User_Details.Where(y => y.Leader_User_Id==linkto).Select(y => y.User_Id);
lvTimesheet.DataSource = de.TimeSheetDetailViews.Where(x => x.Link_To == linkto || x.Link_To == list).ToList();
我想在Lambda表达式中转换此查询,但得到如下错误
错误列表
Error 39 Cannot convert lambda expression to type 'string' because it is not a delegate type D:\Govinda\OfficeProjects\InfosenseTimeSheet\InfoSenseTimeSheet\InfoSenseTimeSheetWeb\ViewMyTimesheetList.aspx.cs 16 64 D:\...\InfoSenseTimeSheetWeb\
Error 40 Delegate 'System.Func<InfosenseTimeSheetModel.TimeSheetDetailView,int,bool>' does not take 1 arguments D:\Govinda\OfficeProjects\InfosenseTimeSheet\InfoSenseTimeSheet\InfoSenseTimeSheetWeb\ViewMyTimesheetList.aspx.cs 16 64 D:\...\InfoSenseTimeSheetWeb\
Error 41 Operator '==' cannot be applied to operands of type 'decimal' and 'System.Linq.IQueryable<decimal>' D:\Govinda\OfficeProjects\InfosenseTimeSheet\InfoSenseTimeSheet\InfoSenseTimeSheetWeb\ViewMyTimesheetList.aspx.cs 16 92 D:\...\InfoSenseTimeSheetWeb\
错误39无法将lambda表达式转换为类型“string”,因为它不是委托类型D:\Govinda\OfficeProjects\InfoSenseTimeSeet\InfoSenseTimeSeetWeb\ViewMyTimesheetList.aspx.cs 16 64 D:\…\InfoSenseTimeSeetWeb\
错误40委托“System.Func”不接受1个参数D:\Govinda\OfficeProjects\infosensetimeet\infosensetimeet\infosensetimeetweb\ViewMyTimesheetList.aspx.cs 16 64 D:\…\infosensetimeetweb\
错误41运算符“==”不能应用于类型为“decimal”和“System.Linq.IQueryable”的操作数D:\Govinda\OfficeProjects\InfosenseTimeSheet\InfosenseTimeSheet\InfoSenseTimeSheetWeb\ViewMyTimesheetList.aspx.cs 16 92 D:\…\InfoSenseTimeSheetWeb\
注:-
Sql查询工作正常。我得到了答案
int linkto=Convert.ToInt32(Session["login_user_Id"]);
var list=de.User_Details.Where(y => y.Leader_User_Id==linkto).Select(y => y.User_Id);
lvTimesheet.DataSource = de.TimeSheetDetailViews.Where(x => x.Link_To == linkto || list.Contains(x.Link_To)).ToList();