Can you create a simple 'EqualityComparer' using a lambda expression

Question

Short question:

Is there a simple way in LINQ to objects to get a distinct list of objects from a list based on a key property on the objects.

Answer 1

Here's an interesting article that extends LINQ for this purpose... http://www.singingeels.com/Articles/Extending_LINQ__Specifying_a_Property_in_the_Distinct_Function.aspx

The default Distinct compares objects based on their hashcode - to easily make your objects work with Distinct, you could override the GetHashcode method.. but you mentioned that you are retrieving your objects from a web service, so you may not be able to do that in this case.