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

You need to instantiate a new MyProject.Modules.Masters.

MyProject.Modules.Masters myMasters = new MyProject.Modules.Masters()
panel1.Controls.Add(myMasters);

This will only add a new control to panel1. If you also want to clear everything out of the panel before adding the control like you said in the question, call this first:

panel1.Controls.Clear();

Answer 2

You have to instantiate your controls. You will have to make sure the size is set appropriately, or for it to have an appropriate dockfill.

var myControl = new MyProject.Modules.Masters();
panel1.Controls.Add(myControl);

Answer 3

Isn't just easier.

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

EDIT: Maybe try this...

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