RadDataPager
Telerik DataPager provides the user with a navigation interface to page through any collection of data. The control provides paged data source to any data-bound controls. The DataPager control is extremely helpful when working with large collection of data, providing Data Virtualization when working with the Telerik Grid. For more details you can visit the following blog post:
Q1 2010 New Feature: Paging with RadGridView for Silverlight and WPF
Important: The RadDataPager control has been moved from the Telerik.Windows.Controls.GridView assembly to the new Telerik.Windows.Controls.Data assembly. Since its namespace remains the same as before (Telerik.Windows.Controls) existing applications only need to add a reference to the new assembly. No other changes should be necessary.