在UserControl内设置TextBox的焦点

Question

I have a UserControl with just a TextBox inside it, this TextBox has some attached properties and some code behind, since I am going to use it in multiple Views, I created a UserControl with it to improve reusability and maintenance.

This TextBox is used for Search, so I trying to set it on Focus when the user makes a Ctrl+F , this works fine, the problem is, I can't make the TextBox focus, just the UserControl gets focused.

So the question is: How to redirect the Focus of the UserControl to the TextBox inside it?

I tried already:

protected override void OnPreviewGotKeyboardFocus(KeyboardFocusChangedEventArgs e)
{
    this.TextBox.SelectAll();        
    base.OnPreviewGotKeyboardFocus(e);
}

and many other different combinations, like changing the order the base is called, or removing it...calling this.TextBox.Focus() which sets a StackOverFlow...verifying if this.TextBox.IsFocused doesn't work, it's always false ...so... how can I achieve this?

Answer 1

Ok, got it, I changed the:

protected override void OnPreviewGotKeyboardFocus(KeyboardFocusChangedEventArgs e)
{
    this.TextBox.SelectAll();        
    base.OnPreviewGotKeyboardFocus(e);
}

to:

protected override void OnGotKeyboardFocus(KeyboardFocusChangedEventArgs e)
{
    this.TextBox.SelectAll();        
    base.OnGotKeyboardFocus(e);
}

I guess the whole RoutedEvents interactions of bubbling and tunneling was interfering.