How to determine datatype of session variable?

I am using a session variable to store a date however, on rare occasions there is no value for the date so I get an empty string return value instead of a date. How do I check to see if I'm getting a date or a string when I try to use the session variable?

Re: How to determine datatype of session variable?

Cast to an object and then use GetType.

object a = (object)Session["MYS"];

a.GetType

http://msdn.microsoft.com/en-us/library/system.object.gettype.aspx

I hope this can help you