windows-phone-8

问题 I wanted to Develop a similar layout like Longlist Selector Wp8 in Windows phone 8.1. I came across a issue, my list is not appearing. XAML page <Grid > <Grid.Resources> <CollectionViewSource x:Name="MainGrps" IsSourceGrouped="True"/> </Grid.Resources> <ListView ItemsSource="{Binding Source={StaticResource MainGrps}}" Margin="50"> <ListView.ItemTemplate> <DataTemplate > <Grid Background="Gray"> <StackPanel> <TextBlock Foreground="White" FontSize="20" Text="{Binding ItmName}"/> <TextBlock

问题 I am trying to implement authentication with Windows Azure Mobile Services in my Windows Phone app. I have followed the official tutorials and the authentication works fine. The issue is that, whenever the app is closed and started again, the user has to enter username and password. Since the services only use authentication tokens, the 'Remember me' option on log in page is not likely to work. The official documentation for Windows Azure shows possibility of Single Sign On with the Microsoft

问题 I am new to Windows Phone Development so I would like to open a discussion on Proximity Sensor. I have searched a lot on Proximity Sensor detection event but couldn't find it. Is there any API or any event available for detect proximity sensor. If it's not possible then is there any other possible way for detecting proximity sensor in Windows Phone 7 & 8. Any kind of help would greatly appreciated. Thank You. 来源： https://stackoverflow.com/questions/21309399/detect-proximity-sensor-events-in

问题 I want to remove subdomain names from a URI. Example: I want to return 'baseurl.com' from the Uri "subdomain.sub2.baseurl.com". Is there a way of doing this using URI class or is Regex the only solution? Thank you. 回答1: This should get it done: var tlds = new List<string>() { //the second- and third-level TLDs you expect go here, set to null if working with single-level TLDs only "co.uk" }; Uri request = new Uri("http://subdomain.domain.co.uk"); string host = request.Host; string

问题 Trying to read an image that is stored in the pictures library via an URI the image is never displayed (in an Image control). Reading the same image via a stream works (assuming the app hat the Picture Library capability declared of course). Reading images from the application's data folder via an URI works. Does someone know what could be wrong? Here is how I (unsucessfully) try to read an image via an URI: var imageFile = (await KnownFolders.PicturesLibrary.GetFilesAsync()).FirstOrDefault()

问题 I have the following XAML: <ListBox.ItemsPanel> <ItemsPanelTemplate> <Grid> <Grid.RowDefinitions> ... </Grid.RowDefinitions> <Grid.ColumnDefinitions> ... </Grid.ColumnDefinitions> </Grid> </ItemsPanelTemplate> </ListBox.ItemsPanel> ... <ListBox.ItemContainerStyle> <Style TargetType="ListBoxItem"> <Setter Property="Grid.Row" Value="{Binding Row, Mode=OneWay}" /> <Setter Property="Grid.Column" Value="{Binding Column, Mode=OneWay}" /> </Style> </ListBox.ItemContainerStyle> ... When the page

问题 I am currently developing a stopwatch and timer app in C#/XAML for Windows Phone 8. While using my app on my phone, I found that it randomly closed out/crashed and that too at different points of use (i.e. I wasn't doing the same thing each time it closed out). While debugging, I found that my app closed out with the following error code in my output window: "The program '[1100] TaskHost.exe' has exited with code -2147220717 (0x80040313)." I am very confused as to why this is happening. I

问题 I am trying to update a column in Azure Mobile Services on Windows Phone 8 app. The table stores user data and I want to find the user having a specific email and password and then update a column of it. Currently I have: IMobileServiceTable<Item> table = App.MobileService.GetTable<Item>(); var account = table .Where(Item => Item.Email == _email_ && Item.Password == _pass_). Take(1).ToListAsync(); List<Item> list = account; list[0].Pursue = pursue; // the value I want to assign Name of the

问题 I have base64 encoded string, result being in iso-8859-2 encoding and I need to get the string from it. I'm woking on windows Phone 8 C#/XAML .NET 4.5 App. What I'm doing right now is: private string decodeXML(string xml) { byte[] data = Convert.FromBase64String(xml); //I decode the base64 data string decoded = Encoding.UTF8.GetString(data, 0, data.Length); //and here get a string from it using UTF8, problem being the data are in "iso-8859-2" return decoded; } So I tried: private string

问题 I want to draw Image in windows phone 8 using pixel byte. so I get some pixel byte via c++ library(c++/CLI). But pixel data not include bitmap Header. It is just pixel byte array. Is this possible to convert pixel data array to bitmap Image without bitmap header in windows phone? public void updateImage(byte[] byteArray, UInt32 bufferSize, int cvtWidth, int cvtHeight) { // I saw this source a lot of search. But It's not work. It makes some exeption. BitmapImage bi = new BitmapImage();