object.GetType()

Also called the GetType Method
This method operators on an object instance.
System.Type.GetType("System.Int32")

if (control.GetType().Name.Equals("TreeView")) 
{ } 

switch (myobject.GetType().ToString()) 
{ 
   case "" : break; 

} 

object.GetType()            // System.Int32 
object.GetType().Name       // Int32 

GetType().Name()
GetType().FullName
The object must be instantiated

This method is also available in VB.Net

Dim sVariable As String 
Dim oType As Type = sVariable.GetType() 

VB.Net

The equivalent in VB.Net is the TypeName function.