Object models? Well, ".Net" is a marketing concept. The ".Net Framework"
is a piece of software made of the CLR and the class library
(
http://msdn.microsoft.com/library/en-us/cpguide/html/cpovrintroductiontonetframeworksdk.asp).
VB.Net is a language being able to produce code meeting the requirements
of the .Net Framework, i.e. it can output IL code (intermediate language).
What I meant was: No matter which language you use, the Datagrid, it's
members and behavior and how to use it, is part of the .Net Framework
class library.