Deletes a record with the specified key value.
DeleteRecordByKey( key: any ): void
An object that uniquely identifies the record.
Once the DeleteRecordByKey method is called, the ASPxVerticalGrid.RecordDeleting event is raised. It allows you to cancel the delete operation. After a record has been deleted, the ASPxVerticalGrid.RecordDeleted event is raised.
End-users can delete records by clicking the Delete command item.