Zetbox.Client.Presentables.ObjectEditor.WorkspaceViewModel.WorkspaceViewModel C# (CSharp) Method

        public WorkspaceViewModel(IViewModelDependencies appCtx,
            IZetboxContext dataCtx, ViewModel parent,
            IZetboxContextExceptionHandler exceptionHandler)
            : base(appCtx, dataCtx, parent)
        {
            if (exceptionHandler == null) throw new ArgumentNullException("exceptionHandler");

            _exceptionHandler = exceptionHandler;
            dataCtx.IsModifiedChanged += dataCtx_IsModifiedChanged;
            Items = new ObservableCollection<ViewModel>();
            Items.CollectionChanged += new NotifyCollectionChangedEventHandler(Items_CollectionChanged);
            appCtx.Factory.OnIMultipleInstancesManagerCreated(dataCtx, this);

            ValidationManager.Changed += ValidationManager_Changed;
        }