What is the proper way to check for null values?

Question

I love the null-coalescing operator because it makes it easy to assign a default value for nullable types.

 int y = x ?? -1;

That\'s great,

Answer 1

You could also use as, which yields null if the conversion fails:

Session["key"] as string ?? "none"

This would return "none" even if someone stuffed an int in Session["key"].