Hi all,



I am working on a form with an interface look similar to the SF Localization & Messaging Editor, with a TreeView on the left and a Panel Manager on the right side.



Problem I have is how would I know when a page is being deactivated?





Where do I put code to validate above scenario and avoid Page B from being activated until the conflict have been resolved in Page A?



The same thing is done in the Localization & Messaging Editor, if I am modifying a message then click on another node while the BO is dirty a broken rule is created and I cannot leave that page until I save or cancel the record. In which event should I put the code to validate this condition?



Thanks!

Edhy Rijo

Thanks Ivan,



Yeap, in my case, there will be more data manipulation like adding/deleting/updating records which involve the same manipulation for the treeview nodes in order to keep it in sync with the current view, it will be fun, at least so far it looks much easier than when I did it with VFP .

Edhy Rijo