public void cb(IAsyncResult ia)
{
delegateexample tmp = ia.AsyncState as delegateexample;
string res = tmp.EndInvoke(ia);
OutputLine("res is cb" + res);
}
public void mytest()
{
delegateexample mydeletest = myadd;
IAsyncResult res = mydeletest.BeginInvoke(1, 4, new AsyncCallback(cb), mydeletest);
//while(res.IsCompleted == false)
//{
// OutputLine("wait of end");
// Thread.Sleep(500);
//}
//string ss = mydeletest.EndInvoke(res);
//OutputLine("end invoke is "+ss);
}
