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摘要： ContextMenu的使用下面代码的效果是右键单击图片时，显示菜单。当单击菜单的某项时，执行相应的命令。Image.RightTapped += new RightTappedEventHandler(Image_RightTapped); async void Image_RightTapped(object sender, RightTappedRoutedEventArgs e) { var menu = new PopupMenu(); menu.Commands.Add(new UICommand("Open... 阅读全文

摘要： 1、选择单个文件，FileTypeFilter.Add是添加能访问的文件类型。 private async void filePickerBtn_Click(object sender, RoutedEventArgs e) { FileOpenPicker fileOpenPicker = new FileOpenPicker(); fileOpenPicker.FileTypeFilter.Add(".jpg"); fileOpenPicker.FileTypeFilter.Add(".jpeg"... 阅读全文