title: What is the best way to prevent user click anything on the form while processing on background?
body: <p>I am working on an Youtube Mp3 converter. Mp3 converting takes a few seconds and I want the user not able to click any control on the form. I have done it using <code>Control.Enabled = false</code> for all control but I think this way is not professional and doesn't seems good for visuality. Is there any good method to do this?</p>