Callback

another example

//showing progress using callback delegate

delegate void Mydelegate(string message);

Mydelegate delUpdateMessage;

void Main()

{

    delUpdateMessage = new Mydelegate(Print);

    //Thread td = new Thread(new ParameterizedThreadStart(DoWork));

    //td.Start(delUpdateMessage);

        //or

    Task.Run(() => DoWork(delUpdateMessage));    

}

public void DoWork(object callback)

{

    var delCallback = (Mydelegate)callback;

    for (int i = 1; i <= 10; i++)

    {

        Thread.Sleep(1000);

        delCallback((i * 10).ToString());

    }

}

void Print(string message)

{

    Console.Write(message+"% ");

}