WP7 how to filter listbox

Question

I have a ListBox which have about 100 items. Now I want to to filter this ListBox based on what user types in TextBox . I want to search real time, so I handle TextBox_OnTextChanged event.

My first solution was to set ListBox 's ItemsSource whenever text changed. This is really slow.

Many ones suggest using CollectionViewSource , but this doesnot make it faster.

How to filter ListBox real time and fast ?

Answer 1

Check the filter methode of databinded source

Silverlight ListBox with ObservableCollection<T> and dynamic filter