Question

In my Silverlight application, I can’t seem to bring focus to a TextBox control. On the recommendation of various posts, I’ve set the IsTabStop property to True and I’m using TextBox.Focus(). Though the UserControl_Loaded event is firing, the TextBox control isn’t getting focus. I’ve included my very simple code below. What am I missing? Thanks.

Page.xaml

<UserControl x:Class='TextboxFocusTest.Page'     xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'      xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'      Loaded='UserControl_Loaded'      Width='400' Height='300'>      <Grid x:Name='LayoutRoot' Background='White'>                 <StackPanel Width='150' VerticalAlignment='Center'>                         <TextBox x:Name='RegularTextBox' IsTabStop='True' />             </StackPanel>             </Grid> </UserControl> 

Page.xaml.cs

using System.Windows; using System.Windows.Controls;  namespace PasswordTextboxTest {     public partial class Page : UserControl     {         public Page()         {             InitializeComponent();         }          private void UserControl_Loaded(object sender, RoutedEventArgs e)         {             RegularTextBox.Focus();         }     } } 

Answer 1

I found this on silverlight.net, and was able to get it to work for me by adding a call to System.Windows.Browser.HtmlPage.Plugin.Focus() prior to calling RegularTextBox.Focus():

   private void UserControl_Loaded(object sender, RoutedEventArgs e)    {               System.Windows.Browser.HtmlPage.Plugin.Focus();       RegularTextBox.Focus();    }