private static void OnHasFocusChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
var element = sender as FrameworkElement;
if (element == null)
{
throw new InvalidOperationException("The FocusBehavior.HasFocus only can be attached to an FrameworkElement");
}
if ((bool)e.NewValue)
{
ControlFocus.GiveFocus(element);
element.LostFocus += Element_LostFocus;
}
}
private void SelectText(TextBox box, bool selectAll, string text)
{
ControlFocus.GiveFocus(box, delegate
{
if (selectAll)
{
box.SelectAll();
}
else if (!string.IsNullOrEmpty(text))
{
int pos = box.Text.IndexOf(text);
if (pos > 0 &&
box.Text.Contains(text))
{
box.Select(pos, text.Length);
}
}
});
}
private static void Element_Loaded(object sender, RoutedEventArgs e)
{
var target = GetStartFocusedControl((DependencyObject)sender);
ControlFocus.GiveFocus(target);
}