void AddVersieCommand_Executed(object prm)
        {
            VersieModel vm = new VersieModel();

            vm.Datum = DateTime.Now;
            string nextver = null;

            if (Versies != null && Versies.Count > 0)
            {
                Match m = Regex.Match(Versies[Versies.Count - 1].Versie, @"([0-9]+)\.([0-9]+)\.([0-9]+)");
                if (m.Groups.Count == 4)
                {
                    string midver = m.Groups[2].Value;
                    int    nextmidver;
                    if (Int32.TryParse(midver, out nextmidver))
                    {
                        nextver = m.Groups[1].Value + "." + (nextmidver + 1).ToString() + ".0";
                    }
                }
            }
            vm.Versie    = nextver == null ? "1.0.0" : nextver;
            vm.Ontwerper = Environment.UserName;
            VersieViewModel vvm = new VersieViewModel(vm);

            Versies.Add(vvm);
        }
        public AlgemeenTabViewModel(ControllerModel controller, ControllerDataModel controllerdata) : base(controller)
        {
            _ControllerData = controllerdata;

            foreach (VersieModel vm in _ControllerData.Versies)
            {
                VersieViewModel vvm = new VersieViewModel(vm);
                Versies.Add(vvm);
            }
            Versies.CollectionChanged += Versies_CollectionChanged;
        }
 void RemoveVersieCommand_Executed(object prm)
 {
     Versies.Remove(SelectedVersie);
     SelectedVersie = null;
 }