DetailsView::ItemDeleting Event
Occurs when a Delete button within a DetailsView control is clicked, but before the delete operation.
Assembly: System.Web (in System.Web.dll)
The ItemDeleting event is raised when a Delete button within the DetailsView control is clicked, but before the delete operation. This allows you to provide an event handler that performs a custom routine, such as canceling the delete operation, whenever this event occurs.
A DetailsViewDeleteEventArgs object is passed to the event handler, which allows you to determine the index of the record being deleted and to indicate that the delete operation should be canceled. To cancel the delete operation, set the Cancel property to true. You can also manipulate the Keys and Values collections, if necessary, before the values are passed to the data source.
For more information about handling events, see Consuming Events.
The following code example demonstrates how to use the ItemDeleting event to cancel the delete operation if the user attempts to delete the last item from the DetailsView control.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.