Remove elements from one List that are found in another

Question

I have two lists

 List list1 = new List();
 List list2 = new List();

I want remove all elements from li

Answer 1

        var NewList = FirstList.Where(a => SecondList.Exists(b => b.ID != a.ID));

Using LINQ

Answer 2

Description

I think you mean the generic type List<Type>. You can use Linq to do this

Sample

List<string> l = new List<string>();
List<string> l2 = new List<string>();

l.Add("one");
l.Add("two");
l.Add("three");

l2.Add("one");
l2.Add("two");
l2.Add("three");
l2.Add("four");

l2.RemoveAll(x => l.Contains(x));

More Information

• MSDN - List.RemoveAll Method