.Contains() on a list of custom class objects

Question

I\'m trying to use the .Contains() function on a list of custom objects

This is the list:

List CartProducts = new Lis         


        

Answer 1

If you want to have control over this you need to implement the [IEquatable interface][1]

[1]: http://This method determines equality by using the default equality comparer, as defined by the object's implementation of the IEquatable.Equals method for T (the type of values in the list).