End Google Ads 201810 - BS.net 01 --> Hello,

I'm developing my own custom control that is essentially a form with a custom scroll bar, with several command buttons at the bottom of it that will modify the contents of the form. However, when you click these command buttons, it needs to run a sql query which may be slow. Thus I would like some sort of loading screen while it performs the queries and updates the form content. How would I go about doing this? Thanks!