Use the Items collection to programmatically control the items in the DataGrid control. The Items collection does not provide any methods to add or remove items to the collection. However, you can control the contents of an item by providing a handler for the ItemCreated event.
Only items bound to the data source are contained in the Items collection. The header, footer, and separator are not included in the collection.
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)