C#

if (a.GetType() == typeof(Int32))<br />
    ...<br />
else if (a.GetType() == typeof(MyClass))<br />
    ...

case typeof(MyClass).FullName:

if (obj is Font) {
    ... do someting fonty (probably will need a cast)
} else if (obj is Panel) {
    ... deal with a Panel (probably will need a cast)
} etc.

Font fnt=obj as Font;  // generates null if obj isn't a Font
if (fnt!=null) {
   ... do someting fonty to fnt (no extra cast required)
}
Panel pan=obj as Panel;
if (pan!=null) {
    ...
}

setup type -> action association
Dictionary<type, somedelegate> myLookup = new .....
myLookup.Add(typeof(string) , () => MessageBox.Show("Its a string!"));
myLookup.Add(typeof(int) , () => Console.WriteLine("ooh an int.."));

SomeDelegate action;
if (myLookup.TryGetValue( a.GetType() , out action ) )
{
    //there is a delegate associated with this type:
    action(); //execute the action
}

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