c# - Entity Framework select one of each group by date

Question

I have a table like this (Table name: Posts):

+----+--------------------------+-------+------------+
| id |         content          | type  |    date    |
+----+--------------------------+-------+------------+
|  0 | Some text                | TypeA | 2013-04-01 |
|  1 | Some older text          | TypeA | 2012-03-01 |
|  2 | Some even older texttext | TypeA | 2011-01-01 |
|  3 | A dog                    | TypeB | 2013-04-01 |
|  4 | And older dog            | TypeB | 2012-03-01 |
|  5 | An even older dog        | TypeB | 2011-01-01 |
+----+--------------------------+-------+------------+

Using a LINQ expression I want to find the newest content of each type, so the result should be

Some text | TypeA 
A dog     | TypeB

I have tried a few things but no point in pointing out non-working expressions.

Answer 1

If you want to get the whole Posts. You can try this:

var query = Posts.GroupBy(p => p.Type)
                  .Select(g => g.OrderByDescending(p => p.Date)
                                .FirstOrDefault()
                   )