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Questions tagged [windows-phone-8.1]

Windows Phone 8.1 is a major update to Microsoft's Windows Phone 8 operating system. It was announced at the Build Conference in April 2014.

Windows Phone 8.1 introduces new functionality compared with Windows Phone 8.0, in the form of two new API sets:

  • Windows Runtime (MSDN), all APIs with a phone icon on the documentation page is available on WP8.1. This applies to the "Universal App" project types. Many of these APIs are shared with Windows Store applications (aka. Metro or Modern applications), allowing you to have the same code-base for both Windows and Windows Phone applications. Consider using and/or for questions about Universal Applications, to distinct them from Silverlight 8.0/8.1 questions.

  • Silverlight (MSDN) applies to Silverlight 8.0 and Silverlight 8.1 APIs. There's no specific distinction on MSDN for 8.1 only APIs.

  • Improved and security.

  • New APIs for .

MSDN also have a mixed list of the two above for What's New in Windows Phone 8.1 (MSDN), primarily targeting the Windows Runtime features.

Official developer resources are available at dev.windowsphone.com.

Learning resources

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ERROR: Native images generated against multiple versions of assembly System.Net.Http.Primitives

I got this error in my WP8.1 app, Application_UnhandledException ERROR: Native images generated against multiple versions of assembly System.Net.Http.Primitives. at CoolEditor.Class.DropNetRt.DropNetClient.LoadClient() at…
xhg
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Transparent textbox when textbox GotFocussed Windows Phone 8.1?

I need to have transparent textbox, in my WindowsPhone 8.1 Runtime application. I made Background="Transparent" to the textbox, so it is transparent when it is loaded. But on focus, background color changed to white. I write the following code, to…
user3701923
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Read text file in project folder in Windows Phone 8.1 Runtime

I want read one file .txt in root folder of my project into my database at first time application launch, but I don't know how to do that. Anyone know how can I do that, please help me... Thanks I'm working in Windows Phone 8.1 Runtime.
Bolt Delta
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GridView with 2 columns, fill width

The result I want to achieve is pretty simple, a list with 2 columns, both with equal width. In Windows Phone 7/8 this could easily be achieved using a ListBox with a WrapPanel as ItemsPanel and setting the ItemWidth to 240 (as the screen width was…
Johan Falk
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What's the replacement for MarketplaceReviewTask in Windows Phone 8.1 Universal Apps

I've looked everywhere and just can't find a way to launch the Rate and Review from my app. Does anyone know how to launch this task on the new Windows Phone 8.1?
LPains
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Adding firewall rule on Windows Phone 8.1

I really don't know how to look for what I am trying to achieve. I will add two images to show you in a better way what I am doing here. As you can see I have added a blocking rule in firewall which will block a range of addresses(first rule on…
Alejandro
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Windows Phone 8.1 HTML Company Apps - Can't install company app

I'm having problems trying to deploy any kind of HTML application for Windows Phone 8.1 as a Company App. The application I have developed is using a Visual Studio Apache Cordova Apps project, but I've also tested a manually created .appx, a Blank…
Klors
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How to stop credential caching on Windows.Web.Http.HttpClient?

I am having an issue where an app tries to access resources from the same server using different authentication methods, the two methods are: Credentials (NTLM, Basic, etc) OAuth (Bearer) Setup HttpBaseProtocolFilter The HttpBaseProtocolFilter is…
Barnstokkr
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Windows Phone 8.1 Device (Lumia 930) and VS2013 debugging works only with disabled WiFi

There were errors in VS2013 when a Windows Phone 8.1 App is launching for deploy and debug: Error 1 Error : DEP6100 : The following unexpected error occurred during boostrapping stage 'Connecting to the device': SmartDeviceException -…
some_engineer
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Pull down to refresh in Windows Phone 8.1

I want to implement the pull-down-to-refresh function in my WP8.1 (Runtime) app. I tried to find a solution for this WP version, but as I have seen this function works in older versions of WP. I have a ListView where I would like to use it. With…
Speederer
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Windows Phone 8.1 (WinRT): Custom Looping Selector

I want a custom Looping Selector for my Windows Phone 8.1 (WinRT) and I couldn't find any solution for the moment. I want something like this: The Windows Phone Toolkit is for WP8.0 and WP8.1 Silverlight and it doesn't work for WP8.1 (WinRT) apps…
Vahid
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How do I use the new HttpClient from Windows.Web.Http to download an image?

Using Windows.Web.Http.HttpClient how can I download an image? I would like use this HttpClient because it is available to use in portable class libraries.
David Spence
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Windows Phone 8.1 Store app - Link to store

In Windows 8.1 Apps we can link to store apps using ms-windows-store protocol. var storeURI = new Uri("ms-windows-store:PDP?PFN="); await Windows.System.Launcher.LaunchUriAsync(storeURI); Is there any similar ways in Windows…
Reza Jooyandeh
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How to get app version in Windows Universal App?

Does anyone know how to get the application version in a Windows Universal app? There used to be a way reading the xap xaml information in Windows Phone Silverlight apps, but as this changed I can't seem to find a new way of doing this.
meneses.pt
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How to specify Minimized Mode for BottomAppBar WP8.1

Who to set Mode="Minimized" in WP8.1 WINRT for a BottomAppBar?
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