C# ICollectionView.Cast方法代码示例

		public void SelectAllItems(ICollectionView availableItemsCollectionView)
		{
			if (availableItemsCollectionView.SourceCollection is ICollection<Store>)
			{
				availableItemsCollectionView.Cast<Store>().ToList().ForEach(x => SelectItem(x));
			}
		}

        private void LoadedHandler(object sender, RoutedEventArgs e)
        {
            // The following code doesn't work in the WPF Designer environment (Cider or Blend).
            if (!WafConfiguration.IsInDesignMode)
            {
                contactCollectionView = CollectionViewSource.GetDefaultView(ViewModel.Contacts);
                contactCollectionView.Filter = Filter;
                ViewModel.ContactCollectionView = contactCollectionView.Cast<Contact>();
                ViewModel.SelectedContact = ViewModel.ContactCollectionView.FirstOrDefault();
            }

            ViewModel.PropertyChanged += ViewModelPropertyChanged;
            contactsBox.Focus();
            if (ViewModel.SelectedContact != null) { FocusItem(); }
        }

        private void FirstTimeLoadedHandler(object sender, RoutedEventArgs e)
        {
            // Ensure that this handler is called only once.
            Loaded -= FirstTimeLoadedHandler;
            
            // The following code doesn't work in the WPF Designer environment (Cider or Blend).
            if (!WafConfiguration.IsInDesignMode)
            {
                bookCollectionView = CollectionViewSource.GetDefaultView(ViewModel.Books);
                bookCollectionView.Filter = Filter;
                ViewModel.BookCollectionView = bookCollectionView.Cast<BookDataModel>();

                bookTable.Focus();
                bookTable.CurrentCell = new DataGridCellInfo(ViewModel.Books.FirstOrDefault(), bookTable.Columns[0]);
            }
        }

        private void LoadedHandler(object sender, RoutedEventArgs e)
        {
            // The following code doesn't work in the WPF Designer environment (Cider or Blend).
            if (!WafConfiguration.IsInDesignMode)
            {
                emailCollectionView = CollectionViewSource.GetDefaultView(ViewModel.Emails);
                emailCollectionView.Filter = Filter;
                emailCollectionView.SortDescriptions.Add(new SortDescription(nameof(Email.Sent), ListSortDirection.Descending));
                ViewModel.EmailCollectionView = emailCollectionView.Cast<Email>();
                ViewModel.SelectedEmail = ViewModel.EmailCollectionView.FirstOrDefault();
            }

            ViewModel.PropertyChanged += ViewModelPropertyChanged;
            emailsBox.Focus();
            if (ViewModel.SelectedEmail != null)
            {
                FocusItem();
            }
        }

		public void SelectAllItems(ICollectionView availableItemsCollectionView)
		{
			if (availableItemsCollectionView.SourceCollection is ICollection<StoreLanguageDisplay>)
			{
				var itemsList = availableItemsCollectionView.Cast<StoreLanguageDisplay>().ToList();
				itemsList.ForEach(x => SelectItem(x));
			}
			else if (availableItemsCollectionView.SourceCollection is ICollection<StoreCurrency>)
			{
				var itemsList = availableItemsCollectionView.Cast<StoreCurrency>();
				InnerItem.Currencies.Add(itemsList);
			}
			else if (availableItemsCollectionView.SourceCollection is ICollection<Store>)
			{
				availableItemsCollectionView.Cast<Store>().ToList().ForEach(x => SelectItem(x));
			}
		}

        private void updateFilteredCounters(ICollectionView filteredList)
        {
            if (filteredList != null)
            {
                IEnumerable<LogItem> fltList = filteredList.Cast<LogItem>();
                if (fltList != null)
                {
                    ItemsFilterCount = fltList.Count();

                    ItemsDebugFilterCount = (from it in fltList
                                             where it.Level.Equals("DEBUG", StringComparison.OrdinalIgnoreCase)
                                             select it).Count();

                    ItemsInfoFilterCount = (from it in fltList
                                            where it.Level.Equals("INFO", StringComparison.OrdinalIgnoreCase)
                                            select it).Count();

                    ItemsWarnFilterCount = (from it in fltList
                                            where it.Level.Equals("WARN", StringComparison.OrdinalIgnoreCase)
                                            select it).Count();

                    ItemsErrorFilterCount = (from it in fltList
                                             where it.Level.Equals("ERROR", StringComparison.OrdinalIgnoreCase)
                                             select it).Count();

                    ItemsFatalFilterCount = (from it in fltList
                                             where it.Level.Equals("FATAL", StringComparison.OrdinalIgnoreCase)
                                             select it).Count();
                }
            }
            else
            {
                ItemsFilterCount = 0;
                ItemsDebugFilterCount = 0;
                ItemsInfoFilterCount = 0;
                ItemsWarnFilterCount = 0;
                ItemsErrorFilterCount = 0;
                ItemsFatalFilterCount = 0;
            }
        }

        public MainWindow()
        {
            InitializeComponent();

            discord = new DiscordClient(x =>
            {
                x.AppName = "OakBot";
                x.AppUrl = "http://github.com/ocgineer/OakBot";
                x.AppVersion = FileVersionInfo.GetVersionInfo(System.Reflection.Assembly.GetExecutingAssembly().Location).FileVersion;
                x.UsePermissionsCache = false;
            });


            // Initialize instance
            instance = this;

            this.DataContext = this;

            if (!Directory.Exists(Config.AppDataPath)) Directory.CreateDirectory(Config.AppDataPath);
            if (!Directory.Exists(Config.AppDataPath + "\\Webserver")) Directory.CreateDirectory(Config.AppDataPath + "\\Webserver");

            // Initialize config
            Config.GetConfigFromDb();
            LoadConfigToUI();
            DatabaseUtils.LoadAllViewers();
            DatabaseUtils.LoadAllQuotes();

            // Enable sync between threads
            BindingOperations.EnableCollectionSynchronization(colChatMessages, _lockChat);
            BindingOperations.EnableCollectionSynchronization(colViewers, _lockViewers);
            BindingOperations.EnableCollectionSynchronization(colDatabase, _lockDatabase);
            BindingOperations.EnableCollectionSynchronization(colSongs, _lockSongs);
            BindingOperations.EnableCollectionSynchronization(colGiveaways, _lockGiveaways);

            // Create Event for collection changed
            colChatMessages.CollectionChanged += colChatMessages_Changed;

            // Link listViews with collections
            //listViewChat.ItemsSource = colChatMessages;
            listViewViewers.ItemsSource = colViewers;

            // Database listView with filter
            lvViewerDatabase.ItemsSource = colDatabase;
            databaseView = CollectionViewSource.GetDefaultView(lvViewerDatabase.ItemsSource);
            databaseView.Filter = DatabaseFilter;
            lblFilterCnt.Content = databaseView.Cast<Viewer>().Count();

            lvCommands.ItemsSource = colBotCommands;
            lvQuotes.ItemsSource = colQuotes;

            lvSongs.ItemsSource = colSongs;

            lvGiveaways.ItemsSource = colGiveaways;

            // Testing Commands
            colBotCommands.Add(new UserCommand("!test", "Test received!", 30, 0, true));
            colBotCommands.Add(new UserCommand(":yatb", "Yet Another Twitch Bot.", 30, 60, true));
            colBotCommands.Add(new UserCommand("!who", "You are @[email protected]", 0, 0, true));
            colBotCommands.Add(new UserCommand("!block", "@[email protected] Hello thur!", 0, 0, true));
            colBotCommands.Add(new UserCommand("!followdate", "@[email protected], you are following since @[email protected]", 0, 0, true));
            colBotCommands.Add(new UserCommand("!followdatetime", "@[email protected], you are following since @[email protected]", 0, 0, true));
            colBotCommands.Add(new UserCommand("!vartest", "@[email protected] m8", 0, 0, true));
            colBotCommands.Add(new UserCommand("!song", "Currently playing: @[email protected]!", 0, 0, true));
            colBotCommands.Add(new UserCommand("Giveaway", "Just stop...", 0, 0, true, true));
            colBotCommands.Add(new UserCommand("!slap", "@[email protected] slaps @[email protected] so hard, he bursts into pieces!", 0, 0, true));

            colSongs.Add(new Song("https://www.youtube.com/watch?v=VEAy700YGuU"));
            colSongs.Add(new Song("https://soundcloud.com/aivisura/steven-universe-strong-in-the-real-way-rebecca-sugar"));

            string message = "Hello and welcome to the first OakBot Alpha ever to be released! I know it took some time, but I also have a private life, you know? ;)\n\n" +
                             "Anyways, this version has not many functions yet, but the ones that are listed here, are fully working.\n\n" +
                             "WORKING:\n" +
                             "- Twitch Chat\n" +
                             "- Commands\n" +
                             "  - Song Requests (the controls are only working for YouTube at the moment)\n" +
                             "  - Quotes\n" +
                             "  - Follow Date\n" +
                             "- Discord Integration (user unspecific commands work without problems, while the user specific ones are yet to be handled)\n" +
                             "- Import from Ankhbot\n" +
                             "- Dashboard and Viewer related stuff\n\n" +
                             "IMPLEMENTED, BUT NOT FULLY WORKING:\n" +
                             "- Giveaways\n" +
                             "- Stream Currency Gain\n" +
                             "- The UI itself\n\n" +
                             "I know, there's much to do, but bear with me. I'm working as hard as I can c:";
            MessageBox.Show(message, "OakBot Alpha 1");

            // BackgroundTask Thread
            BackgroundTasks bg = new BackgroundTasks(60, 120);
            new Thread(new ThreadStart(bg.Run)) { IsBackground = true }.Start();

            // Auto connect
            if (Config.AutoConnectBot)
            {
                ConnectBot();

                // Can only connect if Bot is connected
                if (Config.AutoConnectStreamer)
                {
                    ConnectStreamer();
//.........这里部分代码省略.........

 public void SelectAllItems(ICollectionView availableItemsCollectionView)
 {
     var itemsList = availableItemsCollectionView.Cast<PropertyValue>().ToList();
     itemsList.ForEach(SelectItem);
 }

		public void SelectAllItems(ICollectionView availableItemsCollectionView)
		{
			var itemVM = _returnItemVmFactory.GetViewModelInstance();
			itemVM.IsBulkReturn = true;

			var confirmation = new ConditionalConfirmation { Title = "Specify return reason".Localize(), Content = itemVM };

			ReturnItemConfirmRequest.Raise(confirmation, (x) =>
			{
				if (x.Confirmed)
				{
					var itemsList = new List<ReturnBuilder.ReturnLineItem>(availableItemsCollectionView.Cast<ReturnBuilder.ReturnLineItem>());

					foreach (var obj in itemsList)
					{
						ReturnBuilder.AddReturnItem(obj, obj.LineItem.Quantity, itemVM.SelectedReason);
					}
					OnPropertyChanged("ReturnTotal");
					OnIsValidChanged();
				}
			});

		}

        private static int GetNumberOfResults(ICollectionView _view)
        {
            Debug.Assert(_view != null);

            var items = _view.Cast<object>();
            Debug.Assert(items != null);

            return items.Count();
        }