Com que esborrar un diagrama és una cosa seriosa que pot causar la pèrdua de treball si es fa accidentalment, & umbrello; us demanarà que confirmeu l' operació de esborrat abans d' esborrar realment el diagrama. Una vegada que s' hagi esborrat un diagrama i s' hagi desat el fitxer no hi ha forma de desfer l' acció.
Since deleting a diagram is something serious that could cause loss of work if done by accident, & umbrello; will ask you to confirm the delete operation before actually removing the Diagram. Once a diagram has been deleted and the file has been saved there is no way to undo this action.