Best way to remove multiple items matching a predicate from a c# Dictionary?

Question

I need to remove multiple items from a Dictionary. A simple way to do that is as follows :

  List keystoremove= new List();
  for         


        

Answer 1

Here's an alternate way

foreach ( var s in MyCollection.Where(kv => kv.Value.Member == foo).ToList() ) {
  MyCollection.Remove(s.Key);
}

Pushing the code into a list directly allows you to avoid the "removing while enumerating" problem. The .ToList() will force the enumeration before the foreach really starts.