What's the role of GetHashCode in the IEqualityComparer in .NET?

Question

I\'m trying to understand the role of the GetHashCode method of the interface IEqualityComparer.

The following example is taken from MSDN:

using Syst         


        

Answer 1

GetHashCode is used in Dictionary colections and it creates hash for storing objects in it. Here is a nice article why and how to use IEqualtyComparer and GetHashCode http://dotnetperls.com/iequalitycomparer