异步调用Web Service

Polling异步(Ben,End方法)

            EZweather.EZtour a = new MulFormRun.EZweather.EZtour();
            IAsyncResult myResult = a.BegingetWeather("西安", null, null);
            while (!myResult.IsCompleted)
            {
                textBox1.Text = "处理中";
            }
            string[] mys = a.EndgetWeather(myResult);
            foreach (string i in mys)
            {
                listBox1.Items.Add(i);
            }
            textBox1.Text = string.Empty;

 

.Net2.0中的用法

void getWeatherComplete(object sender, EZweather.getWeatherCompletedEventArgs e)
    {
        GridView1.DataSource=e.Result;
        GridView1.DataBind();
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        EZweather.EZtour a = new EZweather.EZtour();
        a.getWeatherCompleted += new EZweather.getWeatherCompletedEventHandler(getWeatherComplete);
        a.getWeatherAsync("深圳");
    }

计时统计

System.Diagnostics.Stopwatch sw;
sw = new System.Diagnostics.Stopwatch();
sw.Start();
//do something
sw.Stop();
sw.ElapsedMilliseconds //毫秒数