Label control that set the focus to the related Textbox on the mousehover event

[C# Programming]

Hello, I like to create a Label control with an property in which I can select the available controls on the Form (except for the Label controls).
One the respective control is set in Design time, this control will get the focus in Runtime when the user moves with the mouse over the Label control
I'm fairly new with creating Usercontrols. Can anyone help me?

Kind regards Arjen