Trapping User Cancel

We're looking for a way to make sure that a user wants to cancel a device config ui. Something along the lines of an "are you sure" popup. In other words, user clicks cancel (after making a change) and is presented with a "your changes will be lost" message. After seeing the message, allow cancel to process when they click cancel again (or include a yes/no option in the popup). I could swear that I've returned an error_msg_dict on user cancel before, but now I can't find it.

Is it possible to keep the config ui from closing when userCancelled==True?

To add a bit more detail, it seems that validateConfigUi() is not called when userCancelled is True, so in order to be able to trap a UI cancel, it needs to be done via closedDeviceConfigUi(). We've tried to return an errorMsgDict from there, but it seems to be ignored.

What we're looking to do is to have something like a 'showAlertText' window pop up when userCancelled is True.

[matt (support)]

I don't believe this is going to be possible given how it currently works. When Cancel is pressed the UI is going to close the window no matter what. The only thing that can cancel the window closing is the validate call which is only called when Save is pressed.

Thanks Matt, I was afraid of that. Please consider this a feature request then.

It's a decently complex config ui, so we'll be very explicit that users will lose their changes if they select cancel.