void timer_Tick(object sender, EventArgs e)
{
if (SearchContentTextBox.Focus())
{
MessageBox.Show("文本框聚焦成功!");
}
}
void MainPage_Loaded(object sender, RoutedEventArgs e)
{
//let browser focus to current html element
System.Windows.Browser.HtmlPage.Plugin.Focus();
//SearchContentTextBox.Focus();
SearchContentTextBox.Dispatcher.BeginInvoke(() => { SearchContentTextBox.Focus(); });
//use multi-thread to test if textbox is focused
//DispatcherTimer timer = new DispatcherTimer();
//timer.Interval = TimeSpan.FromMilliseconds(5000);
//timer.Tick += new EventHandler(timer_Tick);
//timer.Start();
}
