here my problem:
I have a ToggleButtonBar with a ViewStack as a dataProvider.
If I change data on a canvas of the ViewStack and the user switches
to another canvas with the ToggleButtonBar I want to show the
message "Data not s saved. Do you want to save? (YES/NO/CANCEL)". I
can't find the right place in the code to put that message. If I
put it in the change event of the viewStack, the new canvas already
shows while the message appears. Is there an event before the
ToggleButtonBar is actually changing. If anyone can help me I would
be very happy. Thanks in advance!