Question

I have 3 tables called Users, Groups and UserGroups.
UserGroups is the many 2 many join table.

I want to write a linq statement that gets me only those groups
that DO NOT have a UserGroup record where UserID is say 1.

Please supply L2Q code if possible

Malcolm

Answer 1

Well, you could express that as:

var query = db.Groups.Where(x => !db.UserGroups
                                    .Any(y => y.UserId == 1 && 
                                              y.GroupId == x.GroupId));

… assuming I’ve understood you correctly.