Question

i am having trouble joinging tables on a LINQ query.

_{(source: kalleload.net)}

As you can see there are three tables there. On my webpage, i want to display the following data in a List View.

betid | bet.title | bet.description | match.location | match.begindate/enddate | teamone NAME | teamtwo Name.

so let me explain this.
I want 3 fields from the bets table.
I want 2 fields from the match table (where the match.matchid = bet.matchid)
I want 2 fields from the TEAM table (where match.teamone = team.teamid and match.teamtwo = team.teamid)

i hope this makes sense.

thankyou

Answer 1

It looks like you already have the relationships defined. If you are using the designer, you should have existing entities in the generated classes.

var result = bet.Select( b => new {
                 BetID = b.betid,
                 Title = b.title, 
                 Description = b.description,
                 BeginDate = b.match.begindate, 
                 EndDate = b.match.enddate, 
                 TeamOneName = b.match.team_1.teamname, 
                 TeamTwoName = b.match.team_2.teamname 
              } );

Note that I’m only guessing at the association names. You should be able to figure out the names given to them by the designer.