How to check object is null or empty in C#.NET 3.5?

Question

If objects contains null or empty then how to validate or check the condition for the same?

How to bool check whether object obj is null or

Answer 1

It sounds like what you want to do is this:

object obj = null;
double d;

if (!double.TryParse(Convert.ToString(obj), out d))
{
   d = 0.0;
}

But the question does not make a lot of sense.