public AjoutAchat()
        {
            InitializeComponent();
            LocalPersonne = new ViewModel.VM_Personne();
            LocalStock    = new ViewModel.VM_Stock();
            LocalAchat    = new ViewModel.VM_Achat();

            ficheInfoDGAchat.DataContext = LocalAchat;
            ficheInfoClientA.DataContext = LocalPersonne;
            ficheInfoVoiture.DataContext = LocalStock;


            RemplirAllCb();
        }
 public Stock()
 {
     InitializeComponent();
     LocalStock  = new ViewModel.VM_Stock();
     DataContext = LocalStock;
 }