Different Hash code for same arrays in C#

Question

This is pseudo code

sbyte[] array1 = new sbyte[100]; 
array1.setValues(); 
sbyte[] array2 = (sbyte[])array1.Clone();

But array1.getHashCode() is not equal with array2.getHashCode();

What should I do to get same hash code for array1 and array2?

P.S: Dictionary isn't useful. Because I wanted to add these arrays to a hashtable. And after each adding I need to check for a possible same content array added before.

P.S2: It seems I should clarify my problem. At first I posted the complete question at Using Hash in C# and when it was solved this question was raised.

Answer 1

That isn't the same array - it is a different array with the same contents.

An array GetHashCode() doesnt hash the contents. That hash is simple a hash of the reference.

You could write a custom IEqualityComparer<sbyte[]> if needed for a dictionary etc.