[Solved] Invalidate item in popup

[Pol]

I have a problem with invalidating items in RadListPicker 2013.3. I have following sequence:
1. User clicks on RadListPicker, popup shows up, user selects item, popup closes.
2. User renames one of items in collection bounded to RadListPicker.ItemsSource.
3. User clicks on RadListPicker again, new name is not shown in popup (old name is shown instead).
4, User selects that item. Correct new name is shown in collapsed control. So the problem is only in popup.
This problem didn't happen in previous versions (for instance in 2011.3 but I can check more recent versions if this will help you). I understand this is for a good reason (performance) but how to invalidate this? I tried various things like recreating items objects but no effect.

UPDATE: Seems that calling OnPropertyChanged("CollectionName") after recreating all items does the trick but a less work solution would be nice
.

[Deyan]

Hello Pawel,

Thanks for writing.

Using the INotifyPropertyChanged interface and the PropertyChanged event is the standard way of notifying a listener that a property has changed on a given object. This is the simplest and most commonly used way. All Silverlight templates use this interface and this event to understand that your business object has changed and update its visual state accordingly.

Regards,
Deyan
Telerik

[Pol]

Thanks for basic info but obviously this is not enough in this case as I'm using INotifyPropertyChanged and it's PropertyChanged event for both individual items displayed on list and for it's container model. Why do I have to recreate the whole collection?

[Deyan]

Hello Pawel,

Thanks for writing back.

It seems that I do not correctly understand the scenario. Can you please ZIP your project and send it to me in a new support ticket with instructions so that I can directly take a look at the code and see what causes the glitch?

Thanks for your time.

Regards,
Deyan
Telerik