如何SQL查詢轉換爲Lambda表達式

Question

這裏是我的SQL查詢：

SELECT 
    UserName, 
    IsApproved 
FROM aspnet_Users u 
INNER JOIN aspnet_Membership m 
    ON u.UserId = m.UserId 

任何人可以幫助我如何與lambda表達式寫？

Answer 1

試試這個..

from u in context.aspnet_Users 
join m in context.aspnet_Membership on u.UserId equals m.UserId select new { u.UserName, m.IsApproved}; 

Answer 2

from u in aspnet_Users 
join m in aspnet_Membership on u.UserId equals m.UserId 
select new { u.UserName, m.IsApproved }; 

Answer 3

您可以使用JOIN與Lambda表達式這樣的事情，

var result = aspnet_Users 
       .Join(aspnet_Membership, 
       u => u.UserId, 
       m => m.UserId, 
       (u, m) => new 
      { 
       UserName = u.UserName, 
       IsApproved = u.IsApproved 
      } 
      ); 

Answer 4

一個怎麼樣這個查詢：

選擇用戶名， is asproved from aspnet_Users你好 inner join aspnet_Membership m on u.UserId = m.UserId 其中u.UserName = @UserName

在這種情況下，放哪裏？ @UserName的是，我在 公衆的ActionResult UserActivation（用戶名字符串）定義字符串參數 { ... }