You may have faced a problem of losing the GridView checkbox state while using paging feature of GridView control. When you select a checkbox on first page and moves to second page to select other items from the GridView control then after moving back to the first page shows the previously selected checkbox as unchecked as if it forgot to save the previous state of checkbox. Don't worry check this sample to see the functionality of maintaining the checkbox state while using paging feature of GridView control. Select an item from first page of following GridView control and move to its second page, after coming back to its first you will get your selections preserved.
