Question

Given the Below Tables. How do I get the Distinct name given the other ID of 76 in LINQ?

**Table S** SID   OtherID ------------------------------ 1     77 2     76   **Table Q** QID   SID  HighLevelNAme      LoweLevelName --------------------------------------- 10     1       Name1              Engine 11     1       Name1              SparkPlus 12     1       Name2              Seat 13     1       Name2              Belt 14     1       Name1              Oil 

I want to return a list of

Name1 Name2

The SQL to do this is

SELECT DISTINCT     Q.HighLevelNAme FROM S JOIN Q ON Q.SID = S.SID WHERE         S.OtherID = 76 

I also have Objects that represents each table.

An answer in VB or C# is acceptable.

Answer 1

If you have the foreign key relationships defined in your database, and generated the LINQ classes via the designer, then the joins should be represented in the object model, right? So each QItem has a property SItem? If not, I guess you can use the Join extension method for that part.

Anyhow, I didn’t test this IRL, but wouldn’t it just be this?

var results = (from QItem in dataContext.QItems                 where QItem.SItem.OtherID == 76                 select QItem.HighLevelName).Distinct();