The new Silverlight Toolkit for Windows Phone 7
*AutoComplete Box: It’s very important for applications using search feature . When you start typing on your phone , you will get relevant matches.
*ListPicker : It’s the ComboBox for WP7
*LongList Selector : It’s an advanced ListBox, it supports full data and UI virtualization, flat lists and grouped lists.
*PageTransitions : It helps you add transitions between your pages. The available transitions in this Toolkit are :
All you have to do is to download the toolkit and you will find Samples of how to use these controls.