I have a command button that runs an append query in its On_Click event. I need to make sure it is only clicked once. I've tried to make the button disabled or invisible, but I get the error message that I can't do that with the focus on the control. I'd like a simple solution that doesn't make me change focus. Ideally, the user would click it once and it would be invisible until other parameters are reset before it can be used again.