win-universal-app

问题 I'm trying to get a lighter variation of accent color using theme resource SystemAccentColorLight1 SystemAccentColorLight2 ... I'm getting this exception: The text associated with this error code could not be found. Cannot find a Resource with the Name/Key SystemAccentColorLight1 [Line: 15 Position: 19] <Grid Background="{ThemeResource ResourceKey= SystemAccentColorLight1}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Padding="5"> <Grid.ColumnDefinitions> <ColumnDefinition Width=

问题 I want to download files to Downloads folder and read. it is a root folder like photos and videos. But Windows.Storage.DownloadsFolder isn't available for phone and I don't see it in KnownFolders like Windows.Storage.KnownFolders.PicturesLibrary; Also I tried C:\Data\Users\Public\Downloads\ it gives an unauthorized result. I see some apps has access to it, but how? 回答1: You can use a file or folder picker. I'm not sure if you want the user to chose a file, or if you want to pick a file

问题 I want to download files to Downloads folder and read. it is a root folder like photos and videos. But Windows.Storage.DownloadsFolder isn't available for phone and I don't see it in KnownFolders like Windows.Storage.KnownFolders.PicturesLibrary; Also I tried C:\Data\Users\Public\Downloads\ it gives an unauthorized result. I see some apps has access to it, but how? 回答1: You can use a file or folder picker. I'm not sure if you want the user to chose a file, or if you want to pick a file

问题 While working on an Universal App (currently only on the WP8.1-side), I've stumbled upon the following weird thing. I've got a ComboBox, the UserControl (located in the WindowsPhone-project) it's in is binded to a VM in the Shared project. Both the ItemsSource and SelectedItem are binded to their respective properties in the VM. When running the application, when you select any item except the first one, it is working perfectly. But, when I select the first item, the string displayed in the

问题 I'm writing my first Windows 10 Universal App that operates on MySql database. I used code from this guide (It's for Windows 8 store apps): https://blogs.oracle.com/MySqlOnWindows/entry/how_to_using_connector_net But when I try to open connection with my database I get error: An exception of type 'System.NotImplementedException' occurred in >MySql.Data.RT.dll but was not handled in user code Additional information: SSL not supported in this WinRT release. public class DBconnector { static

问题 I want to read a locally stored file into a byte array. How do I do that? This is my try: StorageFolder folder = await StorageFolder.GetFolderFromPathAsync(filePath); var file = await folder.GetFileAsync(filePath); var buffer = await FileIO.ReadBufferAsync(file); DataReader dataReader = Windows.Storage.Streams.DataReader.FromBuffer(buffer); // doesn't work because ReadBytes wants a byte[] as parameter and also isn't asynchronous byte[] result = dataReader.ReadBytes(buffer.Length); 回答1:

问题 I want to read a locally stored file into a byte array. How do I do that? This is my try: StorageFolder folder = await StorageFolder.GetFolderFromPathAsync(filePath); var file = await folder.GetFileAsync(filePath); var buffer = await FileIO.ReadBufferAsync(file); DataReader dataReader = Windows.Storage.Streams.DataReader.FromBuffer(buffer); // doesn't work because ReadBytes wants a byte[] as parameter and also isn't asynchronous byte[] result = dataReader.ReadBytes(buffer.Length); 回答1:

问题 I have a simple and I need to change colors of my buttons every second in that . I use this code btnBlue.Background = new SolidColorBrush(Windows.UI.Colors.Blue) But it doesn't contain my custom color that I have use in xaml like #FF30B3DD ! So what should I do ? can anybody help me ? 回答1: You can use Color.FromArgb() to define a custom color in code: btnBlue.Background = new SolidColorBrush(Color.FromArgb(255, 48, 179, 221)); Alternatively, you can define the color in XAML in advance as a

问题 I'm trying to show a simple Flyout (with informational content) when a AppBarToggleButton within BottomAppBar is pressed, but my solution doesn't work. :( This is my code: <Page.BottomAppBar> <CommandBar> <AppBarToggleButton x:Uid="MapPageAppBarLegend" Label="" Icon="List"> <FlyoutBase.AttachedFlyout> <Flyout> <TextBlock Text="Informations here..."/> </Flyout> </FlyoutBase.AttachedFlyout> </AppBarToggleButton> </CommandBar> </Page.BottomAppBar> Nothing appears.. Can anyone help me to showing

问题 I am using VS 2015, creating a Univerasl App. I want to create a new view (XAML). I can right click, Add > XAML > XAML View, and the XAML gets created with the name and location that I want. But, how can I create a code behind here, e.g. MyNewView.xaml.cs, and "link it up" as a child node in my solution explorer? 回答1: As RavingDev said: Do not use "XAML View", instead use "Blank Page" or "User Control". On a side note, if you want to manually create a code file and link it with anything else