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Please somebody finds out my mistakes. Thank you so much.

henhen(哼哼, 找工ing ^_^)

It seems never finish. BTW, the web service is ok in web app calling using the method waithandle. The following code is in windows application.
*********************************************
private void button2_Click(object sender, System.EventArgs e)
{
WindowsApplication1.SycAsyc.SycAsyc webAsyc=new WindowsApplication1.SycAsyc.SycAsyc();

AsyncCallback cb= new AsyncCallback(ServiceCallback);
IAsyncResult ar=webAsyc.BeginGetFile("asyc", cb, webAsyc);
while (ar.IsCompleted == false)
{ textBox1.Text="wait";
}

}

public void ServiceCallback(IAsyncResult ar)
{WindowsApplication1.SycAsyc.SycAsyc webAsyc = (WindowsApplication1.SycAsyc.SycAsyc) ar.AsyncState;
textBox1.Text = webAsyc.EndGetFile(ar);
}

(#1516295@0)
Last Updated: 2003-12-15
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工作学习 / IT技术讨论 / Please somebody finds out my mistakes. Thank you so much. -henhen(哼哼, 找工ing ^_^); 2003-12-15 {754} (#1516295@0)
It seems never finish. BTW, the web service is ok in web app calling using the method waithandle. The following code is in windows application.
*********************************************
private void button2_Click(object sender, System.EventArgs e)
{
WindowsApplication1.SycAsyc.SycAsyc webAsyc=new WindowsApplication1.SycAsyc.SycAsyc();

AsyncCallback cb= new AsyncCallback(ServiceCallback);
IAsyncResult ar=webAsyc.BeginGetFile("asyc", cb, webAsyc);
while (ar.IsCompleted == false)
{ textBox1.Text="wait";
}

}

public void ServiceCallback(IAsyncResult ar)
{WindowsApplication1.SycAsyc.SycAsyc webAsyc = (WindowsApplication1.SycAsyc.SycAsyc) ar.AsyncState;
textBox1.Text = webAsyc.EndGetFile(ar);
}

Your problem is coming here tooooo of-ten. -workopolis(﹡ 枫树下のCOYOTE ﹡); 2003-12-15 {54} (#1516423@0)
:rolia
Where can I go?
go to rolia
never exit
exit

:D:D -henhen(哼哼, 找工ing ^_^); 2003-12-15 {11} (#1516433@0)
no problem.

wrong way -aimaomao(爱毛毛); 2003-12-15 {259} (#1516765@0)
If I am not misunderstanding you, I think you are doing it in the wrong way. .Net provides standard asynchrous call to method of web service. I can submit your a zip file containing web service and client, but unfortunatelly, I do not know your email address.

你就在这说说好了，我在MSDN和其它论坛search了半天，发现用callback的例子大同小异，所以不知道怎么回事，不用callback的asynchronous调用完全成功。谢谢！顺便顶给xmlhttprequest(DataSet lover...)看。 -henhen(哼哼, 找工ing ^_^); 2003-12-15 (#1516776@0)

up! -henhen(哼哼, 找工ing ^_^); 2003-12-15 (#1516807@0)

就是我说的原因啊：textBox1.Text = webAsyc.EndGetFile(ar); 不能在 callback 里面直接这么操作，要 merge 回 ui thread -xmlhttprequest(DataSet lover...); 2003-12-15 (#1516847@0)

程序还没走到这一步 -aimaomao(爱毛毛); 2003-12-15 (#1516859@0)
try this: -xmlhttprequest(DataSet lover...); 2003-12-15 {159} (#1516863@0)
this.BeginInvoke(new MethodInvoker(this.test)); // use this line in callback, 'this' is win form...

private void test()
{
this.label1.Text = "abc";
}

Thanks. -henhen(哼哼, 找工ing ^_^); 2003-12-15 (#1516881@0)

I tried in a console application, same problem. But, let me try. Thank you. -henhen(哼哼, 找工ing ^_^); 2003-12-15 {49} (#1516867@0)
what is the straight way to merge 回 ui thread ?

WindowsApplication1.SycAsyc.SycAsyc webAsyc=new WindowsApplication1.SycAsyc.SycAsyc(); -aimaomao(爱毛毛); 2003-12-15 {169} (#1516849@0)
问题可能出在这一句，
WindowsApplication1.SycAsyc.SycAsyc webAsyc=new WindowsApplication1.SycAsyc.SycAsyc();

你debug 一下，看webAsync的内容，是否created an instance.

that's the web service. nio problem here. It works. -henhen(哼哼, 找工ing ^_^); 2003-12-15 (#1516870@0)

add a Thread.Sleep(100) in your while loop and have a try. -guestagain(guest again); 2003-12-15 (#1516977@0)

good. I'm waiting for you. Thanks. :-) -henhen(哼哼, 找工ing ^_^); 2003-12-16 (#1517128@0)
The problem is thread. -henhen(哼哼, 找工ing ^_^); 2003-12-16 {224} (#1517137@0)
Thread.Sleep(100) doesn't work.
If my asynchronous call doesn't use callback, I tried several ways, it works. if I use callback, the code I posted here, the Form no response anymore although the process is still running.

Tip: threads fired from WinForm should run on the control's thread.... -lingsui(零碎); 2003-12-16 (#1517153@0)

Thanks so much. I succeeded just now. So exhausted. -henhen(哼哼, 找工ing ^_^); 2003-12-16 (#1517169@0)

@Calgary

Please somebody finds out my mistakes. Thank you so much.

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