Gets the number of items in the underlying data source.
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 records in the underlying data source.
Because the DetailsView control displays only one record at a time, this value also corresponds to the total number of pages required to display every record in the data source.
To determine the index of the current record from the underlying data source, use the DataItemIndex property.
The following code example demonstrates how to use the property to determine the number of items in the data source. This value is used to display the page count in a Label control contained within a custom pager row.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.