The DataGrid control requires additional coding for paging. The GridView control automatically supports paging by setting the PagerSettings property. The PagerSettings property supports four modes: Numeric ( default ), NextPrevious, NumericFirstLast, and NextPreviousFirstLast.
The Numeric mode displays numbered page links instead of "next/prev" links, and the NumericFirstLast option adds first and last page links. The GridView control's PagerStyle property can be used to set styles and the position of the pager.
Additionally, you can customize the pager buttons for the GridView control using a PagerTemplate.
Custom paging support in the GridView is supplied by the bound data source control as opposed to the AllowCustomPaging mechanism supplied by the DataGrid control.