public MedicinesViewModel(UpravnikWindow parent, LekoviWindow thisWindow)
 {
     _parent               = parent;
     _thisWindow           = thisWindow;
     DeleteMedicineCommand = new MyICommand(ObrisiLek);
     AddMedicineCommand    = new MyICommand(DodajNoviLek);
     UpdateMedicineCommand = new MyICommand(IzmeniLek);
     GenerateReportCommand = new MyICommand(GenerateReport);
     CancelCommand         = new MyICommand(Zatvori);
     UpdateTable();
 }
        private void LekoviWindow()
        {
            LekoviWindow lw = new LekoviWindow(parent);

            lw.Show();
        }