Remove text after clicking in the textbox

Question

When you activate an application, a textbox with text \"hello\" will appear.

My question is:
When you click on the textbox in order to make input data, I want to rem

Answer 1

you can use Tap method also , it is also working

private void tb1_Tap(object sender, System.Windows.Input.GestureEventArgs e)
    {
        tb1.Text = "";
    }