Example of. Net Asynchronous Method call

The advantage of writing this is that testmethod can be called smoothly in both synchronous and asynchronous threads.

Methodinvoker and action are both built-in Delegate types of. NET 2.0. This allows you to call back a method without parameters, instead of defining a new delegate.

 Private void Button#click ( Object Sender, Eventargs E)
{
 Thread T = New  Thread ( New  Threadstart (Testmethod ));
T. Start ();
}

 Public void Testmethod ()
{
 If ( This . Invokerequired)
{
 // Methodinvoker handler = new methodinvoker (testmethod );
  Action Handler = New  Action (Testmethod );

 This . Invoke (handler, Null );
}
 Else
 {
This . Text = "Async invoked ." ;
 MessageBox . Show ( "Async invoked" );
}
}

 
Public voidCalc (IntA,IntB,IntC,IntD)
{
VaRR = A + B + C + D;
}