Esempio n. 1
0
        public RemotePageViewModel(RemoteDataService remoteDataService)
        {
            _remoteDataService = remoteDataService;

            WorkItems = new ObservableRangeCollection <WorkItemViewModel>();

            RunAllCommand    = new RelayCommand(() => WorkItems.Apply(x => x.RunCommand.Execute(null)));
            CancelAllCommand = new RelayCommand(() => WorkItems.Apply(x => x.CancelCommand.Execute(null)));
        }
        public static void UpdateCollectionTest()
        {
            var viewModelFactoryService = Dependencies.Container.Resolve <IViewModelFactoryService>();

            ChatMessageViewModel CreateViewModel(ChatMessageModel model)
            {
                var vm = viewModelFactoryService.ResolveViewModel <ChatMessageViewModel>();

                vm.UpdateMessageModel(model);
                return(vm);
            }

            var col1 = new ObservableRangeCollection <ChatMessageViewModel>
            {
                CreateViewModel(new ChatMessageModel {
                    Body = "1", Id = "1"
                }),
                CreateViewModel(new ChatMessageModel {
                    Body = "2", Id = "2"
                }),
                null,
                null,
                null,
                CreateViewModel(new ChatMessageModel {
                    Body = "3", Id = "3"
                }),
            };

            var col2 = new List <ChatMessageViewModel>
            {
                CreateViewModel(new ChatMessageModel {
                    Body = "22", Id = "2"
                }),
                null,
                CreateViewModel(new ChatMessageModel {
                    Body = "333", Id = "3"
                }),
                CreateViewModel(new ChatMessageModel {
                    Body = "4", Id = "4"
                }),
            };

            var messagesToDelete = col1.Except(col2).ToList();

            messagesToDelete.AddRange(col1.Where(x => x == null));
            col1.RemoveRange(messagesToDelete);

            col1.Apply(x => x.UpdateMessage(col2.FirstOrDefault(x.Equals)));

            col1.AddRange(col2.Except(col1).Where(x => x != null));
        }