static void Main()
{
DelegateGreeting del = x => { Console.WriteLine("Welcome {0} to {1}", "Arab", x); System.Threading.Thread.Sleep(1000); return(2); };
IAsyncResult AsycRes = del.BeginInvoke("California", CallBackMethod, null);
Console.ReadLine();
}
static void Main()
{
DelegateGreeting del = x => { Console.WriteLine("Welcome {0} to {1}", "Arab", x); System.Threading.Thread.Sleep(2000); };
IAsyncResult AsycCall = del.BeginInvoke("California", null, null);
del.EndInvoke(AsycCall);
Console.WriteLine("Asyc call finished");
}