How to add user control to panel

Question

I have created multiple user controls in my project and what I need to do is to be able to switch between them on a panel control.

for example, if the user click button1

Answer 1

Isn't just easier.

panel1.Controls.Clear();
panel1.Controls.Add(new MyProject.Modules.Masters());

EDIT: Maybe try this...

panel1.Controls.Cast().ForEach(i => i.Dispose());
panel1.Controls.Clear();
panel1.Controls.Add(new MyProject.Modules.Masters());