public SampleDataSource(){#region Group1var group1 = new SampleDataGroup("FilePicker","Use Windows.Storage.Pickers API","Access and save files using the file picker","Assets/FilePicker.jpg","");group1.Items.Add(new SampleDataItem("FilePicker-PickASinglePhoto","Pick a single photo","only one file can selected,file type is jpg,jpeg,png","Assets/FilePicker.jpg","only one file can selected ","",group1,typeof(PickASinglePhoto)));group1.Items.Add(new SampleDataItem("FilePicker-PickMultipleFiles","Pick multiple files","you can pick multiple files","Assets/FilePicker.jpg","pick multiple files","",group1,typeof(PickMultipleFiles)));group1.Items.Add(new SampleDataItem("FilePicker-PickAFolder","Pick a folder","you can pick a folder","Assets/FilePicker.jpg","Pick a folder","",group1,typeof(PickAFolder)));group1.Items.Add(new SampleDataItem("FilePicker-SaveAFile","Save a file","you can save a file","Assets/FilePicker.jpg","Save a file","",group1,typeof(SaveAFile)));this.AllGroups.Add(group1);#endregion#region Group2var group2 = new SampleDataGroup("FileAceess","Using Windows.Storage API","File access","Assets/FileAccess.jpg","");group2.Items.Add(new SampleDataItem("FileAceess-CreatingAFile","Create a file","Using CreateFileAsync Create a file","Assets/FileAccess.jpg","Using CreateFileAsync","",group2,typeof(CreatingAFile)));group2.Items.Add(new SampleDataItem("FileAceess-WritingAndReadingText","Write And Read A Text","Using WriteTextAsync，ReadTextAsync Write And Read  Text","Assets/FileAccess.jpg","Using WriteTextAsync，ReadTextAsync","",group2,typeof(WritingAndReadingText)));group2.Items.Add(new SampleDataItem("FileAceess-WritingAndReadingBytes","Writing and reading bytes in a file","Using WriteBufferAsync，ReadBufferAsync Write And Read bytes","Assets/FileAccess.jpg","Using WriteBufferAsync，ReadBufferAsync","",group2,typeof(WritingAndReadingBytes)));group2.Items.Add(new SampleDataItem("FileAceess-WritingAndReadingUsingStream","Writing and reading using a stream","Using OpenAsync Writing and reading using a stream","Assets/FileAccess.jpg","Using OpenAsync","",group2,typeof(WritingAndReadingUsingStream)));group2.Items.Add(new SampleDataItem("FileAceess-DisplayingFileProperties","Displaying file properties","Using GetBasicPropertiesAsync  Get File Properties","Assets/FileAccess.jpg","Using GetBasicPropertiesAsync","",group2,typeof(DisplayingFileProperties)));group2.Items.Add(new SampleDataItem("FileAceess-PersistingAccess","Persisting access to a storage item for future use","Using MostRecentlyUsedList","Assets/FileAccess.jpg","Using MostRecentlyUsedList","",group2,typeof(PersistingAccess)));group2.Items.Add(new SampleDataItem("FileAceess-CopyAFile","Copy a file","Using CopyAsync Copy a file","Assets/FileAccess.jpg","Using CopyAsync","",group2,typeof(CopyAFile)));group2.Items.Add(new SampleDataItem("FileAceess-DeleteAFile","Delete a file","Using DeleteAsync Delete a file","Assets/FileAccess.jpg","Using DeleteAsync","",group2,typeof(DeleteAFile)));this.AllGroups.Add(group2);#endregion#region Group3var group3 = new SampleDataGroup("AccountPictureName","Use Windows.System.UserProfile API","Account Picture Name","Assets/AccountPictureName.jpg","");group3.Items.Add(new SampleDataItem("AccountPictureName-GetUserDisplayName","Get User DisplayName","Use UserInformation.GetDisplayNameAsync Get User DisplayName","Assets/AccountPictureName.jpg","Use UserInformation.GetDisplayNameAsync","",group3,typeof(GetUserDisplayName)));group3.Items.Add(new SampleDataItem("AccountPictureName-GetUserFirstLastName","Get First Last Name","Use UserInformation.GetFirstNameAsync,GetLastNameAsync Get First Name","Assets/AccountPictureName.jpg","Use UserInformation.GetFirstNameAsync ","",group3,typeof(GetUserFirstLastName)));group3.Items.Add(new SampleDataItem("AccountPictureName-GetAccountPicture","Get Account Picture","Use UserInformation.GetAccountPicture Get Account Picture","Assets/AccountPictureName.jpg","Use UserInformation.GetAccountPicture","",group3,typeof(GetAccountPicture)));group3.Items.Add(new SampleDataItem("AccountPictureName-SetAccountPictureAndListen","Set AccountPicture And Listen","Use UserInformation.SetAccountPicturesAsync Set AccountPicture","Assets/AccountPictureName.jpg","Use UserInformation.SetAccountPicturesAsync","",group3,typeof(SetAccountPictureAndListen)));this.AllGroups.Add(group3);#endregion#region Group4var group4 = new SampleDataGroup("ApplicationSettings","ApplicationSettings"," Use the Windows.UI.ApplicationSettings namespace and WinJS.UI.SettingsFlyout","Assets/ApplicationSettings.jpg","");group4.Items.Add(new SampleDataItem("ApplicationSettings-Default","Default behavior with no settings integration","Default behavior ","Assets/ApplicationSettings.jpg","Default behavior with no settings integration","",group4,typeof(Default)));group4.Items.Add(new SampleDataItem("ApplicationSettings-AddSettings","Add settings commands to the settings charm","Add settings","Assets/ApplicationSettings.jpg","Add settings commands to the settings charm ","",group4,typeof(AddSettings)));this.AllGroups.Add(group4);#endregion#region Group5var Group5 = new SampleDataGroup("AssociationLaunching","Use Windows.System.Launcher API","Association Launching","Assets/AssociationLaunching.jpg","");Group5.Items.Add(new SampleDataItem("AssociationLaunching-LaunchFile","Launching a file","Use Windows.System.Launcher.LaunchFileAsync","Assets/AssociationLaunching.jpg","Use Windows.System.Launcher.LaunchFileAsync","",Group5,typeof(LaunchFile)));Group5.Items.Add(new SampleDataItem("AssociationLaunching-LaunchUri","Launching a URI","Use Windows.System.Launcher.LaunchUriAsync","Assets/AssociationLaunching.jpg","Use Windows.System.Launcher.LaunchUriAsync","",Group5,typeof(LaunchUri)));Group5.Items.Add(new SampleDataItem("AssociationLaunching-ReceiveFile","Receiving a file","Receiving a file","Assets/AssociationLaunching.jpg","Receiving a file","",Group5,typeof(ReceiveFile)));Group5.Items.Add(new SampleDataItem("AssociationLaunching-ReceiveUri","Receiving a URI","Receiving a URI","Assets/AssociationLaunching.jpg","Receiving a URI","",Group5,typeof(ReceiveUri)));this.AllGroups.Add(Group5);#endregion#region Group6var Group6 = new SampleDataGroup("BackgroundTransfer","Use Windows.Networking.BackgroundTransfer API","BackgroundDownloader And BackgroundUploader","Assets/BackgroundTransfer.jpg","");Group6.Items.Add(new SampleDataItem("BackgroundTransfer-DownloadFile","Download Files","Use BackgroundDownloader","Assets/BackgroundTransfer.jpg","BackgroundDownloader","",Group6,typeof(DownloadFile)));Group6.Items.Add(new SampleDataItem("BackgroundTransfer-UploadFile","Upload Files","Use BackgroundUploader","Assets/BackgroundTransfer.jpg","BackgroundUploader","",Group6,typeof(UploadFile)));this.AllGroups.Add(Group6);#endregion#region Group7var Group7 = new SampleDataGroup("Clipboard","Use Windows.ApplicationModel.DataTransfer API","ClipboardOperation","Assets/Clipboard.jpg","");Group7.Items.Add(new SampleDataItem("Clipboard-CopyAndPasteText","Copy and paste text","Use Clipboard.GetContent，Clipboard.SetContent","Assets/Clipboard.jpg","Clipboard.GetContent，Clipboard.SetContent","",Group7,typeof(CopyAndPasteText)));Group7.Items.Add(new SampleDataItem("Clipboard-CopyAndPasteImage","Copy and paste an image","Use Clipboard.GetContent，Clipboard.SetContent","Assets/Clipboard.jpg","Clipboard.GetContent，Clipboard.SetContent","",Group7,typeof(CopyAndPasteImage)));Group7.Items.Add(new SampleDataItem("Clipboard-CopyAndPasteFile","Copy and paste files","Use Clipboard.GetContent，Clipboard.SetContent","Assets/Clipboard.jpg","Clipboard.GetContent，Clipboard.SetContent","",Group7,typeof(CopyAndPasteFile)));Group7.Items.Add(new SampleDataItem("Clipboard-OtherClipboardOperation","Other Clipboard operations","Use Clipboard.GetContent，Clipboard.SetContent","Assets/Clipboard.jpg","Clipboard.GetContent，Clipboard.SetContent","",Group7,typeof(OtherClipboardOperation)));this.AllGroups.Add(Group7);#endregion#region Group8var Group8 = new SampleDataGroup("Compression","Use Windows.Storage.Compression API","Compression And Decompression","Assets/Compression.jpg","");Group8.Items.Add(new SampleDataItem("Compression-CompressionAndDecompression","Compression And Decompression","Use Windows.Storage.Compression API","Assets/Compression.jpg","Compression And Decompression","",Group8,typeof(CompressionAndDecompression)));this.AllGroups.Add(Group8);#endregion#region Group9var Group9 = new SampleDataGroup("MediaButtons","Use Windows.Media API","Media Buttons","Assets/MediaButtons.jpg","");Group9.Items.Add(new SampleDataItem("MediaButtons-MediaEvents","Media Events","Use Windows.Media API","Assets/MediaButtons.jpg","Listening to hardware media transport events","",Group9,typeof(MediaEvents)));this.AllGroups.Add(Group9);#endregion#region Group10var Group10 = new SampleDataGroup("ContactPicker","Use Windows.ApplicationModel.Contacts API","Contact Picker","Assets/ContactPicker.jpg","");Group10.Items.Add(new SampleDataItem("ContactPicker-SinglePicker","Pick a single contact","Use ContactPicker.PickSingleContactAsync()","Assets/ContactPicker.jpg","PickSingleContactAsync","",Group10,typeof(SinglePicker)));Group10.Items.Add(new SampleDataItem("ContactPicker-MultiplePicker","Pick multiple contacts","Use ContactPicker.PickMultipleContactsAsync()","Assets/ContactPicker.jpg","PickMultipleContactsAsync","",Group10,typeof(MultiplePicker)));this.AllGroups.Add(Group10);#endregion#region Group11var Group11 = new SampleDataGroup("ContextMenu","Use Windows.UI.Popups API","Context Menu","Assets/ContextMenu.jpg","");Group11.Items.Add(new SampleDataItem("ContextMenu-ShowAContextMenu","Show a context menu","Show a context menu","Assets/ContextMenu.jpg","Show a context menu","",Group11,typeof(ShowAContextMenu)));Group11.Items.Add(new SampleDataItem("ContextMenu-ReplaceADefaultContextMenu","Replace a default context menu","Replace a default context menu","Assets/ContextMenu.jpg","Replace a default context menu","",Group11,typeof(ReplaceADefaultContextMenu)));this.AllGroups.Add(Group11);#endregion}

   <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}"><Grid.RowDefinitions><RowDefinition Height="Auto"/><RowDefinition Height="*"/></Grid.RowDefinitions><Grid x:Name="Input" Grid.Row="0"><Grid.RowDefinitions><RowDefinition Height="Auto"/><RowDefinition Height="*"/></Grid.RowDefinitions><TextBlock Grid.Row="0" Style="{StaticResource SubheaderTextStyle}" TextWrapping="Wrap">Right-click the image to show a simple context menu. Using touch, the press-and-hold gesture will also trigger the context menu.</TextBlock><Image x:Name="AttachmentImage" Grid.Row="1" HorizontalAlignment="Left" Stretch="None" Source="../Assets/logo.jpg" /></Grid><Grid x:Name="Output" Grid.Row="1" HorizontalAlignment="Left" VerticalAlignment="Top"><TextBlock x:Name="OutputTextBlock" Style="{StaticResource SubheaderTextStyle}" TextWrapping="Wrap"/></Grid></Grid>

    public sealed partial class ShowAContextMenu : Page{public ShowAContextMenu(){this.InitializeComponent();//注册右击事件AttachmentImage.RightTapped += new RightTappedEventHandler(AttachmentImage_RightTapped);}/// <summary>/// Invoked when this page is about to be displayed in a Frame./// </summary>/// <param name="e">Event data that describes how this page was reached.  The Parameter/// property is typically used to configure the page.</param>protected override void OnNavigatedTo(NavigationEventArgs e){}private async void AttachmentImage_RightTapped(object sender, RightTappedRoutedEventArgs e){// Create a menu and add commands specifying a callback delegate for each.// Since command delegates are unique, no need to specify command Ids.var menu = new PopupMenu();menu.Commands.Add(new UICommand("Open with", (command) =>{OutputTextBlock.Text = "'" + command.Label + "' selected";}));menu.Commands.Add(new UICommand("Save attachment", (command) =>{OutputTextBlock.Text = "'" + command.Label + "' selected";}));// We don't want to obscure content, so pass in a rectangle representing the sender of the context menu event.// We registered command callbacks; no need to handle the menu completion eventOutputTextBlock.Text = "Context menu shown";//显示上下文菜单var chosenCommand = await menu.ShowForSelectionAsync(GetElementRect((FrameworkElement)sender));if (chosenCommand == null) // The command is null if no command was invoked.
            {OutputTextBlock.Text = "Context menu dismissed";}}public static Rect GetElementRect(FrameworkElement element){GeneralTransform buttonTransform = element.TransformToVisual(null);Point point = buttonTransform.TransformPoint(new Point());return new Rect(point, new Size(element.ActualWidth, element.ActualHeight));}}

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}"><Grid.RowDefinitions><RowDefinition Height="Auto"/><RowDefinition Height="*"/></Grid.RowDefinitions><Grid x:Name="Input" Grid.Row="0"><Grid.RowDefinitions><RowDefinition Height="Auto"/><RowDefinition Height="Auto"/></Grid.RowDefinitions><TextBlock Grid.Row="0" Style="{StaticResource SubheaderTextStyle}" TextWrapping="Wrap">Select and right-click or tap on the selection in the below text box to show a custom context menu for text.</TextBlock><TextBox x:Name="ReadOnlyTextBox" Grid.Row="1" IsReadOnly="True" TextWrapping="Wrap" Text="http://www.cnblogs.com/refactor"/></Grid><Grid x:Name="Output" Grid.Row="1" HorizontalAlignment="Left" VerticalAlignment="Top"><TextBlock x:Name="OutputTextBlock" Style="{StaticResource SubheaderTextStyle}" TextWrapping="Wrap"/></Grid></Grid>

    public sealed partial class ReplaceADefaultContextMenu : Page{public ReplaceADefaultContextMenu(){this.InitializeComponent();//在系统处理显示上下文菜单交互时发生的时间ReadOnlyTextBox.ContextMenuOpening += new ContextMenuOpeningEventHandler(ReadOnlyTextBox_ContextMenuOpening);}/// <summary>/// Invoked when this page is about to be displayed in a Frame./// </summary>/// <param name="e">Event data that describes how this page was reached.  The Parameter/// property is typically used to configure the page.</param>protected override void OnNavigatedTo(NavigationEventArgs e){}// returns a rect for selected text// if selection is multiline then rect is unreliable// if no text is selected, returns caret location// textbox should not be emptyprivate Rect GetTextboxSelectionRect(TextBox textbox){Rect rectFirst, rectLast;if (textbox.SelectionStart == textbox.Text.Length){rectFirst = textbox.GetRectFromCharacterIndex(textbox.SelectionStart - 1, true);}else{rectFirst = textbox.GetRectFromCharacterIndex(textbox.SelectionStart, false);}int lastIndex = textbox.SelectionStart + textbox.SelectionLength;if (lastIndex == textbox.Text.Length){rectLast = textbox.GetRectFromCharacterIndex(lastIndex - 1, true);}else{rectLast = textbox.GetRectFromCharacterIndex(lastIndex, false);}GeneralTransform buttonTransform = textbox.TransformToVisual(null);Point point = buttonTransform.TransformPoint(new Point());return new Rect(point.X + rectFirst.Left,point.Y + rectFirst.Top,rectLast.Right - rectFirst.Left,rectLast.Bottom - rectFirst.Top);}private async void ReadOnlyTextBox_ContextMenuOpening(object sender, ContextMenuEventArgs e){//将系统上下文菜单标记成已处理e.Handled = true;TextBox textbox = (TextBox)sender;if (textbox.SelectionLength > 0){// Create a menu and add commands specifying an id value for each instead of a delegate.var menu = new PopupMenu();menu.Commands.Add(new UICommand("Copy", null, 1));menu.Commands.Add(new UICommandSeparator());menu.Commands.Add(new UICommand("Highlight", null, 2));menu.Commands.Add(new UICommand("Look up", null, 3));OutputTextBlock.Text = "Context menu shown";Rect rect = GetTextboxSelectionRect(textbox);//显示上下文菜单var chosenCommand = await menu.ShowForSelectionAsync(rect);if (chosenCommand != null){switch ((int)chosenCommand.Id){case 1:String selectedText = ((TextBox)sender).SelectedText;var dataPackage = new DataPackage();dataPackage.SetText(selectedText);//Copy
                            Windows.ApplicationModel.DataTransfer.Clipboard.SetContent(dataPackage);OutputTextBlock.Text = "'" + chosenCommand.Label + "'(" + chosenCommand.Id.ToString() + ") selected; '" + selectedText + "' copied to clipboard";break;case 2:OutputTextBlock.Text = "'" + chosenCommand.Label + "'(" + chosenCommand.Id.ToString() + ") selected";break;case 3:OutputTextBlock.Text = "'" + chosenCommand.Label + "'(" + chosenCommand.Id.ToString() + ") selected";break;}}else{OutputTextBlock.Text = "Context menu dismissed";}}else{OutputTextBlock.Text = "Context menu not shown because there is no text selected";}}}