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Async Delegates

Posted By:Karthikeyan Anbarasan       Posted Date: January 02, 2011    Points: 15    Category: OOPS    URL: http://www.dotnetspark.com  

Async Delegates

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Diagnostics;

namespace Demo
    class Program
        static int TakesAWhile(int data, int ms)
            Console.WriteLine("TakesAWhile started");
            Console.WriteLine("TakesAWhile completed");
            return ++data;

        public delegate int TakesAWhileDelegate(int data, int ms);

        static void Main()
            TakesAWhileDelegate d1 = TakesAWhile;
            d1.BeginInvoke(1, 3000,
               ar =>
                   int result = d1.EndInvoke(ar);
                   Console.WriteLine("result: {0}", result);
            for (int i = 0; i < 100; i++)


        static void TakesAWhileCompleted(IAsyncResult ar)
            if (ar == null) throw new ArgumentNullException("ar");

            TakesAWhileDelegate d1 = ar.AsyncState as TakesAWhileDelegate;
            Trace.Assert(d1 != null, "Invalid");

            int intresult = d1.EndInvoke(ar);
            Console.WriteLine("result: {0}", intresult);


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