private void UserControl_SizeChanged(object sender, System.Windows.SizeChangedEventArgs e)
{
// try
// {
//document.getElementById("silverlightControlHost").style.height="300px";
HtmlPage.Plugin.SetProperty("height", e.NewSize.Height);
//Dispatcher.BeginInvoke(() => { MessageBox.Show("Control resized"); });
//}
// catch { }
}