public void SetFullPiutang(MD_Full_Piutang mfp) {
   mdp.addTolist(mfp);
   Vector vct = new Vector();
   vct.add(dtm.getRowCount() + 1);
   vct.add(mfp.getNama_barang());
   vct.add(mfp.getHarga_barang());
   vct.add(mfp.getBnyk_barang());
   dtm.addRow(vct);
 }