Running into something weird that I haven't encountered before, but maybe I just haven't run into this situation. I have code called by a textbox's Valid method that pops up a form to ask the user to make a choice. If the user clicks a button while focus is on the textbox, the form pops up as expected, but then while focus lands on the button, the Click method doesn't fire.

A few things I've done to track this down:

1) I've created a much simpler form to test with and confirmed that I see the problem there as well.
2) I've used Event Tracking and I see that the button's MouseDown fires, but not MouseUp or Click.
3) I've also tried replacing the form call with a call to MessageBox() to confirm that it's not something about my form that's causing this problem. Same issue.
4) I've tested using only the keyboard in the pop-up form or messagebox, not the mouse, and it doesn't make a difference.

So is this a known issue that I've just been lucky enough not to encounter before?

Any thoughts about how to work around it? I'm thinking that I'll need to set a property in the textbox Valid before calling the pop-up and then in GotFocus of every button on the form, check that property and, if it's set, do something to fire the Click code and clear the property. I'll need a way to clear the property in cases when we're leaving the textbox and headed anywhere other than a button. That one is trickier, but it looks like the button's When fires before the textbox's LostFocus, so maybe a second property to indicate that we're headed for the button.

That all sounds really ugly, so if anyone has other ideas, I'd love to hear them.

Tamar