Reloading collection of data after change or addition from outside source

Jul 2, 2010 at 12:00 AM
What would be the best way to reload the data in a collection after an addition/modification/deletion has been made from an outside source. Example. Main page loads a grid. Each row has a combobox where the itemsource is addresstype (home, po box, etc.). A user then opens another screen to add another address type. How would you post the change notification back to a control that is seperate from an already loaded control. Basically a PropertyChangedNotication from an outside source.