Refresh Page After After Delegates EndInvoke

[cappmgr]

I am doing a POC for an async process. I'd like the Parent Page to get refreshed with data from the method that is invoked by a delegate but I can't figure out how.

private string LongProcess(Int32 SleepTime) 
{ 
	Thread.Sleep(SleepTime);
	Global.ProcessingResults.Add(g.ToString()); 
	return "Process is complete after " + SleepTime + " seconds."; 
} 

private void uxRunProcess_Click(object sender, System.EventArgs e) 
{ 
	uxLabel2.Text = "Process started please wait. Do not hit the browser back button!"; 
	g = Guid.NewGuid(); 
	DelagteLongProcess dlp = new DelagteLongProcess(LongProcess); 
	AsyncCallback acb = new AsyncCallback(DLPCallBack); 
	IAsyncResult ar = dlp.BeginInvoke(Convert.ToInt32(uxProcessTime.Text) * 1000, acb, dlp); 
	Response.Write("<script>window.open('StatusPage.aspx?id=" + g.ToString() + "')</script>"); 
} 

private void DLPCallBack(IAsyncResult res) 
{ 
	DelagteLongProcess dlp; 
	dlp = ((DelagteLongProcess)(res.AsyncState)); 
	uxLabel2.Text = dlp.EndInvoke(res); 
}

uxLabel2.Text does get the return value from the LongProcess method but the page does not reflect it.
Thank you,
Marty