CollectionViewSource Filtering Items

I am using one collection view source bind with many ListBoxes. Each time i am going to the particular listbox Page, I want to filters CollectionViewSource items according to the requirement. So i want know about CollectionViewSource. If am Changing Filter it will Filter items with earlier Filter and This Filter or Only it will filt开发者_Go百科er items with current assigned filter.

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If you bind all the list boxes to the same CollectionViewSource, then yes, updating that source will update all of the list boxes.

You might find Geoff Hudik's WP7 In-App Searching, Filtering blog post useful.