Occurs before an object is deleted from the data source.
Assembly: System.Web.Entity (in System.Web.Entity.dll)
The event is raised before the SaveChanges method is called on the ObjectContext to delete an object. The Entity property of the EntityDataSourceChangingEventArgs object is used to access the object to be deleted. The properties of this object may not be fully set. Only the properties required to identify the object must be set.
When you handle the exception in the event handler, set the ExceptionHandled property to true. This prevents the exception from being raised again. When you specify a value of false for the ExceptionHandled property, the EntityDataSource re-raises the exception.
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.