C# array with capacity over Int.MaxValue

Question

I was wondering if there is any structure in C# that can contain more than Int.MaxValue's restriction of 2,147,483,647 items, in case of really large sets of information. Would this have to be done with multi level arrays? Or could you create an array that has a maximum length of Long.MaxValue? If so, how?

Answer 1

It's been done, a sample BigArray<T> implementation is here.