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copied!<p>ASP.NET has built-in async handlers that let you kick off a request, it runs on a non-handler thread, and may complete on a 3rd thread (differernt from the original request handler thread) all built-in. I've used it tons of times.</p> <p><a href="http://msdn.microsoft.com/en-us/magazine/cc163725.aspx" rel="nofollow noreferrer">http://msdn.microsoft.com/en-us/magazine/cc163725.aspx</a></p> <p>Write yourself a little helper method to hook it all up.</p> <pre><code>/// <summary> /// On load event override /// </summary> /// <param name="e">arguments to the event</param> protected override void OnLoad(EventArgs e) { base.OnLoad(e); string query = this.Page.Request.QueryString["query"]; if (!string.IsNullOrEmpty(query)) { var pat = new PageAsyncTask(this.BeginAsync, this.EndAsync, this.TimeOut, query); this.Page.RegisterAsyncTask(pat); } string me = string.Format(Format, System.Threading.Thread.CurrentThread.ManagedThreadId, "Onload"); Trace.Write(me); } protected override void Render(HtmlTextWriter writer) { string me = string.Format(Format, System.Threading.Thread.CurrentThread.ManagedThreadId, "Render"); Trace.Write(me); this.Icompleted.Text = DateTime.Now.ToString(); base.Render(writer); } /// <summary> /// start the async task /// </summary> /// <param name="sender">original caller</param> /// <param name="e">unused arguments</param> /// <param name="cb">call back routine</param> /// <param name="state">saved stated</param> /// <returns>IAsyncResult to signal ender</returns> private IAsyncResult BeginAsync(object sender, EventArgs e, AsyncCallback cb, object state) { this.bsc = new YourWebServiceReferenceGoesHere(); return this.bsc.BeginGetResponseXml("1", (string)state, "10", "1", cb, state); } /// <summary> /// when the task completes /// </summary> /// <param name="ar">the async result</param> private void EndAsync(IAsyncResult ar) { XmlResponse response = this.bsc.EndGetResponseXml(ar); this.bsc.Close(); this.bsc = null; this.PostProcess(response); } private void TimeOut(IAsyncResult ar) { // currently we do nothing here. } /// <summary> /// /// </summary> private void PostProcess(XmlResponse response ) { string me = string.Format(Format, System.Threading.Thread.CurrentThread.ManagedThreadId, "bingsearch"); Trace.Write(me); var xds = new XmlDataSource { EnableCaching = false, CacheDuration = 0, Data = response.Xml, Transform = this.RemoveNamespaces() }; this.some.DataSource = xds; this.some.DataBind(); } </code></pre>

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