DOTNET SOLUTION(KunaSoft Software Technology Pvt Ltd)-9035801476

Consider the class C# 1 2 3 4 5 6 7 8 9 10 11 12 13          namespace ExtensionMethod      {          public class testClass {              public string sayHello ( ) {              return "Hello" ;            }        }      }     Invoke the above from your form using C# 1 2 3 4 5 6          testClass test = new testClass ( ) ;      MessageBox . Show ( test . sayHello ( ) ) ;     This will show “Hello” in message box. Consider the scenario where you don...