Cursor Focus on Textbox in WPF/C#

Question

I am currently in the process of creating a Onscreen keyboard. I am handling the button click using routedcommands. The issue is that when i click on the button in keyboard panel the focus shifts to the button rather than on the Textbox. The requirement states that a cursor should always appear in the text box to indicate the position where the next character will be inserted. Is there a way i can keep focus on the textbox while button is clicked.

Answer 1

The way I solved this problem was to set focusable=false to all the buttons/controls on the keyboard. That way you don't lose focused of the current control.

Answer 2

Get the reference for the specific control(in that case TextBox). After click, in Button_Click method paste this:

Dispatcher.BeginInvoke((ThreadStart)delegate
            {
                control.Focus();
            });