In some case, we want to display the read-only checkbox in our web form. So, the information cannot be changed. Sure, disabled control will do this but disabled controls change its appearance to grayed-out. We don't want it. There is the easiest way to do that with simple JavaScript. There may be another better way, but I normally use this. We can apply it for other controls as well. What you need to do is just add "onclick='return false;'" in control.