Gets the number of pages required to display the records of the data source in a GridView control.
Assembly: System.Web (in System.Web.dll)
When the paging feature is enabled (by setting the AllowPaging property to true), use the property to determine the total number of pages required to display the records in the data source. This value is calculated by dividing the total number of records in the data source by the number of records displayed in a page (as specified by the PageSize property) and rounding up.
Available since 2.0