Join two dictionaries using a common key

Question

I am trying to join two Dictionary collections together based on a common lookup value.

var idList = new Dictionary();
idList.Add(1, 1);
idList.A         


        

Answer 1

I apologize if I misinterpretted your question, but do you just want to retrieve the Values from list B only where list A has a KeyValuePair with the same Key?

from lookup in lookupList
where idList.Keys.Contains(lookup.Key)
select lookup.Value;