Question

I have a textbox and in some cases in Enter event I need to set the focus to a different textbox.

I tried that code:

 private void TextBox1_Enter(object sender, EventArgs e)
 {
     if(_skipTextBox1) TextBox2.Focus();
 }

But this code doesn’t work. After that I found on MSDN:

Do not attempt to set focus from within the Enter, GotFocus, Leave, LostFocus, Validating, or Validated event handlers.

So how can I do it other way?

Answer 1

Postpone executing the Focus() method until after the event is finished executing. Elegantly done by using the Control.BeginInvoke() method. Like this:

    private void textBox2_Enter(object sender, EventArgs e) {
        this.BeginInvoke((MethodInvoker)delegate { textBox3.Focus(); });
    }