Simple Dot Net Extension

Simple Class Extension can be written using "this" keyword in the parameter. These extensions can be used for Dot net and static classes.

public static class MyExtension
{
     public static string myString(this string s)
     {
         return "my string is:" + s;
     }
}

public class SimpleExtensionTrial
{
   public static void Main ( )
  {
          string  name = "Dot Net Extension"
          System.Console.WriteLine( name.myString());
   }
}


Output:
my string is: Dot Net Extension