It would be useful to be able to display a custom message to the user in the center of the grid, in an obvious manner.

For example, if no results are returned, it would be helpful to display something like “No Records Found.” in the center of the screen. This way the user knows that the the grid is finished processing, and that the empty table is what is supposed to be displayed.

It's already possible to do things like adjust the caption in the onLoad event-handler,