Anyway to obtain PopUpOpening/Closing events

[Anthony]

Hi,

I am using the ListPicker inside of a popup box and would like to know if there was a way that I could run some code when the ListPicker PopUp is opening/closing.  

I attempting to solve the following issue in my app.

Display PopUp window containing ListPicker.
User taps ListPicker which displays the ListPicker PopUp window. 
User taps the back back button. 
Both the ListPicker window and my Rad Window close at the same time.

If I can hook into this ListPicker PopUp opening event I can set the IsClosedOnBackButton property on the first PopUpWindow to false.  Then once the window closes the ListPicker PopUp, I can set it back to true.

Please let me now if you need anymore information

Thanks,
Ant

[Deyan]

Hello Anthony,

I believe the StateChanged event should be useful in your scenario. It is fired providing an instance of the

ListPickerStateChangedEventArgs

Which contain information about the new state of the control. You can use the Expanding and Collapsing states to set the IsClosedOnBackButton property of the popup.

I hope this helps.

Kind regards,
Deyan
the Telerik team