LINQ query to find if items in a list are contained in another list

Question

I have the following code:

List test1 = new List { \"@bob.com\", \"@tom.com\" };
List test2 = new List

        

Answer 1

Try the following:

List test1 = new List { "@bob.com", "@tom.com" };
List test2 = new List { "joe@bob.com", "test@sam.com" };
var output = from goodEmails in test2
            where !(from email in test2
                from domain in test1
                where email.EndsWith(domain)
                select email).Contains(goodEmails)
            select goodEmails;

This works with the test set provided (and looks correct).