Linq to sql select new string

Question

So i got this code:

ClassA { List<ClassB> classBList;}
ClassB { List<ClassC> classCList;}
ClassC { String ID;}

Dictionary<string,int> dict;
ClassA MyObject;

The keys on the dictionary should match the the ID field on ClassC And i wanna do the following query on linq

List<String> matches = (from b in MyObject
                      from c in b.classCList
                      join d in dict
                      on c.ID equals dict.Key
                      select new
                      {
                          c.Value == 0 ? "YES" : "NO"
                      }).ToList();

But I'm getting the error: "Invalid anonymous type member ..."

The bottomline is ... how can i have a condition within the select new?

EDIT

How can i do this query with extended methods?

Any help? Ty

Solution

You are trying to select an anonymous type and then you are trying to assign the result back to List<string>. Your query should be:

List<String> matches = (from b in MyObject.classBList
                        from c in b.classCList
                        join d in dict
                        on c.ID equals d.Key
                        select d.Value == 0 ? "YES" : "NO").ToList();