Accessing ListBoxItems

[Igor]

I want to do an animation on the items in the RadDataBoundListobx (moving a item form one position to another). To do it, I need to access the items as ListBoxItems (the same way as the Items collection in a standard ListBox). Is it possible?

[Deyan]

Hi Igor,

Thanks for writing and for your question.

Why don't you take a look at the already implemented animation infrastructure exposed by RadDataBoundListBox that is described here:

http://www.telerik.com/help/windows-phone/raddataboundlistbox-features-itemanimations-overview.html

I hope this helps.

Greetings,
Deyan
the Telerik team

[Igor]

I know about the built in animations, but there are animations only for adding and removing items. I need an animation for moving items (changing position from X to Y)

[Deyan]

Hi Igor,

Could you please share some further details on your scenario? You can also take a look at the Item Reorder functionality (help contents in the online help section available).

Generally I would not recommend animating containers like that since you may interact with the UI virtualization mechanism and cause glitches.

Kind regards,
Deyan
the Telerik team

[Igor]

I have a shopping list app. Items are in a ListBox. When I mark an item as done (by a gesture), I want that item to move to the end of the list with an animation. Something like continually swaping items in buble sort algorithm.

[Deyan]

Hi Igor,

Thanks for getting back to me and for the requested details.

In this scenario a ListBox control is not suitable since it always displays items as they appear in the source. In other words, you cannot visually reorder items without changing their position in the data source.

A possible solution would be to use the Item Animations feature and implement an animation that slides the item in a vertical manner and whenever an item is checked - remove it from the source collection so that the animation is triggered.

Another approach would be to use a simple stack panel and display a portion of all available items by allowing the users to browse through items with navigation buttons. You can then again add whatever animation you need without worrying about messing with a ListBox's UI virtualization mechanism.

Greetings,
Deyan
the Telerik team