how to highlight/select text in a wpf textbox without focus?

Question

I want to highlight selected text in a wpf textbox while the textbox is not focused. In my application, my textbox never gets focus, and every key input is done manually.

Answer 1

You can use the following code to achieve your purpose:

textBoxToHighlight.Focus();
textBoxToHighlight.Select(0, textBoxToHighlight.Text.Length);

Hope this helps.

Answer 2

Another alternative:

textBoxName.SelectAll();

Answer 3

I really like this type of selection:

textbox.Focus();
textbox.SelectionStart = 0;
textbox.SelectionLength = textbox.Text.Lenght;