What is the importance of Using Statement and Using Keyword in C#?

Question

Is there any VB.NET equivalent to the C# var keyword?

Answer 1

In C# , Usinf can be used in two ways:

1. As a directive where it's behavior will be as inclusion of namespace e.g

using System;

using System.IO;

1. As a statement which can be used only with types that implements IDisposable interface e.g.

   ``using( SQLDataRedaer dr=cmd.ExecuteReader())
   {
   while(dr.Read());
   }