How I write (select where in select ) using linq in MVC

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i write this query in sql :-

select * from ClientsNotifications
where LocationCenterID in (
select UserLocationsCenter.LocationCenterID
from UserLocationsCenter
inner join AspNetUsers on UserLocationsCenter.UserID = AspNetUsers.Id
where AspNetUsers.Email = 'mahmoud.omar@yahoo.com')
order by UploadDate desc

and i want write it using linq , how i do that;

What I have tried:

i try write this query using linq in mvc but i can't

Posted 11-Feb-17 20:21pm

MahmoudOmar

Updated 11-Feb-17 21:07pm

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Karthik_Mahalingam · Accepted Answer · 2017-02-11T21:06:00

Solution 1

try this

C#

var LocationCenterIDs = (from ulc in lstUserLocationsCenter  join asp in lstAspNetUsers on ulc.UserID equals asp.Id    select ulc.LocationCenterID);
            var result = lstClientsNotifications.Where(k => LocationCenterIDs.Contains(k.LocationCenterID)).OrderByDescending(k => k.UploadDate).ToList();

replace the List with your object names

Posted 11-Feb-17 21:06pm

Karthik_Mahalingam

Comments

MahmoudOmar 12-Feb-17 3:49am

i write :-
var email = (string)Session["email"];

and i edit in LocationCenterIDs :-

var LocationCenterIDs = (from ulc in db.UserLocationsCenter join asp in db.AspNetUsers on ulc.UserID equals asp.Id where asp.Email == email select ulc.LocationCenterID);

var result = db.ClientsNotifications.Where(k => LocationCenterIDs.Contains(k.LocationCenterID)).OrderByDescending(k => k.UploadDate).ToList();

return View(result);

and give me this Error :-
An error occurred while executing the command definition. See the inner exception for details.

MahmoudOmar 12-Feb-17 4:22am

i solve my problem and this code work thanks for help

Karthik_Mahalingam 12-Feb-17 4:23am

Cool