how to update off screen pivot item

Question

I want to have a pivot with many PivotItems. However, doing so will impact memory. So I bind pivot to my ViewModel, which has 3 item, and pivot will generate 3 PivotItems.

My ViewModel is of type ObservableCollection and my item does implement INotifyPropertyChanged. This works fine. But when I update my ViewModel, only the current PivotItem, and the right PivotItem is updated. The left PivotItem, which is off screen, is not updated. You can see it when you drag pivot to the left.

How to fix this? Or WP7 doesnot update off screen PivotItem ?

Answer 1

This is one of the main diferrences between pivot and panorama :

panorama loads all items when it loads , but pivot when you select the pivot item