Can't set focus to a child of UserControl

Question

I have a UserControl which contains a TextBox. When my main window loads I want to set the focus to this textbox so I added Focusable=\"True

Answer 1

1. Set your user control to Focusable="True" (XAML)
2. Handle the GotFocus event on your control and call yourTextBox.Focus()
3. Handle the Loaded event on your window and call yourControl.Focus()

I have a sample app running with this solution as I type. If this does not work for you, there must be something specific to your app or environment that causes the problem. In your original question, I think the binding is causing the problem. I hope this helps.