Question

I have an object which is contained within a List<>, I need to remove these from another List<>

e.g.

List<MyObject> AllElements = new List<MyObject>();
List<MyObject> SearchResults = new List<MyObject>();

… Do something so that SearchResults contains a subset of the objects contained within AllResults

Currently I do this to delete them from the main list:

for(int i = 0; i < SearchResults.Count; i++) 
    AllElements.Remove(SearchResults[i]); 

Is there an nicer [linqier!] way?

Answer 1

IEnumerable<T>.Except is your friend (if I’m reading your example correctly):

allElements = allElements.Except(searchResults);