Check Type of Object at Runtime in C#

If You want to check the TYPE of an object at runtime in C#
then you have to use IS Keyword

example :

using System;

class CApp
{
public static void Main()
{
string s = "Shubhank";
long i = 900;

Console.WriteLine( "{0} is {1}an integer", s, (IsIntegerType(s) ? "" : "not ") );
Console.WriteLine( "{0} is {1}an integer", i, (IsIntegerType(i) ? "" : "not ") );
}

static bool IsIntegerType( object obj )
{
if( obj is int || obj is long )
return true;
else
return false;
}
}




Output will be

Shubhank is not an integer
900 is an integer

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