关于WebService的异步调用

[xinxincao]

看了一点资料，还是很糊涂，有以下问题：

1。我有多个参数，怎么传递？
Mothod1(int int1,string string1,out int int2,out string string2)
beginMothod1()参数怎么写呀？
2。到底用不用自己去定义BeginMothod1和EndMothod1函数？
看微软的帮助怎么说要自己定义呢？


能提供一些好的资料也非常感谢，我在网上找到的相关资料不是很多！

[sunxiaoli]

感兴趣

[阿拉丁]

异步很烦 调试的时候回头晕 为什么不用同步？

[rgbcn]

http://www.microsoft.com/china/msdn/library/dnservice/html/service10012002.asp

[gOODiDEA]

参考:

private void button1_Click(object sender, System.EventArgs e)
{
string wsCallLabel = (++wsCallCount).ToString("D4");
try
{
localhost.Service1 ws = new localhost.Service1();
IAsyncResult ar;

if (radioButtonSync.Checked)
{
listBox1.Items.Add( ws.DoSomething(wsCallLabel, (int) numericUpDown1.Value ));
}

if (radioButtonWaitHandle.Checked)
{
ar = ws.BeginDoSomething( wsCallLabel, (int) numericUpDown1.Value, null, null);
Color orgColor = this.BackColor;
int colNum = 0;
while (! ar.AsyncWaitHandle.WaitOne(10, false))
{
if (colNum == 254)
colNum = 0;
else
colNum++;
this.BackColor = Color.FromArgb(100, colNum, 100);
this.Refresh();
}
this.BackColor = orgColor;
listBox1.Items.Add(ws.EndDoSomething(ar));
}

if (radioButtonCallBack.Checked)
{
AsyncCallback cb = new AsyncCallback(WsCallback);
ar = ws.BeginDoSomething( wsCallLabel, (int) numericUpDown1.Value, cb, ws);
}

}

catch(System.Exception exception)
{
listBox1.Items.Add(exception.Message);
}

}

[KK4]

http://www.microsoft.com/china/msdn/library/dnservice/html/service10012002.asp