string.IsNullOrEmpty() vs string.NotNullOrEmpty()

Question

I\'m curious if any developers use string.IsNullOrEmpty() more often with a negative than with a positive

e.g.

if (!string.IsNullOrEmpty())

Answer 1

Of course you could always use string.IsNullOrWhiteSpace(string) now instead of string .IsNullOrEmpty(string) from .NET 4.0