Windows8上下文菜单

Windows8上下文菜单

(2013-01-15 20:24:55)

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标签： 杂谈

//Context Menu

            <Image x:Name="AttachmentImage" HorizontalAlignment="Left" 

                   Stretch="None" Source="Assets/attachment.png" RightTapped="AttachmentImage_RightTapped"/>

        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));

        }

        private async void AttachmentImage_RightTapped(object sender, RightTappedRoutedEventArgs e)

        {

            PopupMenu menu = new PopupMenu();

            menu.Commands.Add(new UICommand("Open with", (command) =>

            {

                Debug.WriteLine(command.Label + "'Selected");

            }));

            menu.Commands.Add(new UICommand("Save attachment", (command) =>

            {

                Debug.WriteLine(command.Label + "'Selected");

            }));

            var chosenCommand = await menu.ShowForSelectionAsync(GetElementRect((FrameworkElement)sender), Placement.Below);

            if (chosenCommand == null)

                Debug.WriteLine("Context menu dismissed");

        }