When paging is enabled (by setting the GridView.AllowPaging property to true), an additional row called the pager row is automatically displayed in the System.Web.UI.WebControls.GridView control. The pager row contains controls that allow the user to navigate to the other pages and can be displayed at the top, the bottom, or both the top and bottom of the control. Use the GridView.TopPagerRow property to programmatically access the System.Web.UI.WebControls.GridViewRow object that represents the top pager row in a System.Web.UI.WebControls.GridView control.

This property is commonly used when you need to programmatically manipulate the top pager row, for example when adding custom content. Any modification to the GridView.TopPagerRow property must be performed after the System.Web.UI.WebControls.GridView control has been rendered; otherwise, the System.Web.UI.WebControls.GridView control will overwrite any changes.