Transform a listbox to textbox

I want to transform开发者_如何学Python a listbox to textbox when I'm clicking a checkbox. To explain, i have a listbox that contains addresses and if an address does't belong in the list someone can click to a checkbox called 'another address';so he can put another address.Thanx for your answer...

1. Place the ListBox and the TextBox controls on top of each other in your form layout.

2. Set the textBox.Visibility = false by default (on form load).

3. When checkbox.OnClick set listBox.Visible = !checkbox.Checked and textBox.Visible = checkbox.Checked.