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I have a List<MyObject> allObjects and List<MyObject> someObjects (all of the objects in someObjects belongs to allObjects too. I want to get the elements from allObjects which doesn’t belong to someObjects ? How can I achieve that with LINQ ?
It’s as easy as
allObjects.Except(someObjects)However, you should be aware that this uses the default equality comparer under the covers to compare the values.
If you wish to use a custom
IEqualityComparer<MyObject>, there’s an overload that allows you to do just that.