Winforms c# - Set focus to first child control of TabPage

Question

Say I have a Textbox nested within a TabControl.

When the form loads, I would like to focus on that Textbox (by default the

Answer 1

I had a user control within another user control. textbox1.Select() worked for me but textbox1.Focus() did not work.

You can also try setting Tabstop to false, textbox1.Focus(), TabStop true.