Occurs when the associated dependency object has prepared appropriate data formats that represent the copy selection, added the copy selection formats to a DataObject, and is ready to either place the DataObject on the Clipboard or begin a drag-and-drop operation.
(in PresentationCore.dll)XMLNS for XAML:
See AddCopyingHandler, RemoveCopyingHandler
<object DataObject.Copying="DataObjectCopyingEventHandler" .../>
This event is intended to provide an opportunity for applications to inspect the contents of the DataObject prior to the copy operation, change, remove or add data formats, or cancel the entire copy operation by calling CancelCommand.
Supported in: 4.5, 4, 3.5, 3.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
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.