Question

I have 2 tables (Topics and Comments) in an MVC application. I would like to query the comments table, but also return the title from the topic table.

I believe I’m using EF. I would use SQL, but I’m not sure if that is possible for an MVC application.

Using SQL I would do the following:

SELECT c.Id, c.Comment, t.Title 
FROM Comments c INNER JOIN Topics t
ON c.TopicId = t.Id

Any help is appreciated.

Answer 1

This is how your sql query is written using LINQ:

var query = _db.Comments.Join(
    _db.Topics,
    c => c.TopicId,
    t => t.Id,
    (comment, topic) =>
       new
       {
           Comment = comment,
           Topic = topic
       });