Universal Windows Platform

Welcome to the Universal Windows Platform Developer Feedback site. This site provides the Windows developer community with a channel for feedback on the following topics:

  • Windows developer platform (APIs, runtimes, and controls)
  • Dev Center (dashboard, reporting/analytics, submission process, etc.)
  • Microsoft Store

Your suggestions will be reviewed by the Windows platform developer team to help with planning ideas and to better understand how developers are using the platform.

What this forum is not intended to cover or capture:

  • Windows consumer suggestions: Use the Windows Feedback Hub app built directly into Windows 10
  • Documentation on docs.microsoft.com: Sign in at the bottom of the page to give documentation feedback via Github
  • Visual Studio / .NET: Use the Visual Studio UserVoice site

If you’re new to UserVoice, two things to keep in mind are (a) List items (and item rankings) represent community interest in features, and not the actual priority list for the product team; and (b) Suggestions made using this forum will be moderated if they do not actually represent a feature request (or if too many different ideas are included in one suggestion).

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  1. No user-consent prompt on first run of broadFileSystemAccess-capable UWP app

    When running an app which requires broadFileSystemAccess capabilities, no user-consent prompt appears on the first use. Instead, the app crashes with a System.UnauthorizedAccessException. Going into Settings to enable this privacy permission prevents the crash, and the app works normally. However, there is no prompt to enable this permission as described in the docs.

    4 votes
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      4 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →

      We are working on it. We are working on updating docs and adding in the prompt like other restricted items.

      A code pattern like this should be a way to catch this scenario.
      {
      StorageFolder folder = await StorageFolder.GetFolderFromPathAsync(@"C:\Foo");
      }
      catch(Exception)
      {
      // prompt user for what action they should do then launch below
      // suggestion could be a message prompt
      await Launcher.LaunchUriAsync(new Uri(“ms-settings:appsfeatures-app”));
      }

    • Enable the Windows 10 Hyper-V Default Switch to work with Cisco AnyConnect

      The following Hyper-V networking Configuration breaks DNS name resolution on the Virtual Machine:
      1. Connecting the host to a non-corporate (remote) WiFi network.
      2. Connecting to the corporate network via Cisco AnyConnect on the host.
      3. Start a VM and connect it to the Default Switch (NAT)

      When a VM is connected to the default switch and the host is connected to the corporate network via Cisco AnyConnect, the VM looses the ability to resolve DNS addresses. The VM is able to ping both public addresses and corporate addresses; however, it is unable to resolve names on either the public…

      212 votes
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        21 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →

        We’re investigating how to best handle VPN and add more configuration around VPN.

        Please:
        1) Upvote if this is important to you. That helps us prioritize.
        2) Let us know which VPN technology you’re using/care most about.
        3) Explain what behavior you’d like to see.

      • Frame.ContentTransitions no longer working for pages in Build 17763

        We have discovered a major breaking change in Windows SDK Build 17763 for UWP apps upgrading from a previous version.

        We have many existing apps (and a minimal repro) which achieves page transitions by setting the Frame.ContentTransitions property. I get the same result if I set this property in code and/or in XAML. For example:

        rootFrame.ContentTransitions = new TransitionCollection
        {
        new NavigationThemeTransition
        {
        DefaultNavigationTransitionInfo = new DrillInNavigationTransitionInfo()
        }
        };

        This is following the recommended guidance here:
        https://docs.microsoft.com/en-us/uwp/api/windows.ui.xaml.media.animation.navigationthemetransition#remarks

        Expected Result:
        When calling Frame.Navigate(typeof(AnyPage)), I should see a "drill in" transition to the new page.This is exactly what I get using previous…

        5 votes
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          1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
        • [W10M] Shared SMTC disappear

          To reproduce:
          - Run some media player, e.g. Groove, start playback and press volume button, you will see SystemMediaTransportControls with @Title1
          - Run any other player or app with SMTC support, it will capture SMTC and you will see @Title2 instead of @Title1
          - Close second app (swipe it up to terminate)

          Result: on desktop SMTC will show @Title1 again, but on Windows 10 Mobile SMTC will disappear. First app will have valid instance of SMTC, it just will not be visible.

          3 votes
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            0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
          • Pivot Memory Issue

            We are having some issues with the Pivot where we make a clean run of a pivot and we open some tabs, when we close them the memory stays allocated to the App. After heavy use this behaviour forces the App to crash after heavy use because the memory allocated to it keeps increasing.

            I have attached this sample with some images and explanation where you can see this issue.

            https://github.com/nikomac/PivotMemorySample/tree/master

            2 votes
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              working on it  ·  1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
            • ALT KeyUp not generated even if handledEventsToo is specified

              We are supposed to get KeyUp events even if the event is handled if we hook up the callback using

              UIElement.AddHandler( UIElement.KeyUpEvent, new KeyEventHandler(…), true)

              However, this does not work correctly for the ALT key. If you press the ALT key and release it immediately then you do get the KeyUp; however if you press and hold the ALT key, then release it, you do not get the KeyUp. You do get KeyDowns.

              I am guessing this relates somehow to the AccessKey system -- ?

              I am using Microsoft.NETCore.UniversalWindowsPlatform 6.1.7 on Windows 10.0 build 17134.

              4 votes
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                1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
              • Control.FontSize has precision issues

                Control.FontSize is of type double. However, if I assign a double it appears to assign a float, as when I get the value of Control.FontSize it returns float-like values.

                For example;
                var tb = new TextBox();
                tb.FontSize = 10.3d;
                System.Diagnostics.Debug.WriteLine($"Double - {tb.FontSize}"); //Double - 10.3000001907349
                tb.FontSize = 10.3f;
                System.Diagnostics.Debug.WriteLine($"Float - {tb.FontSize}"); //Float - 10.3000001907349

                I would expect assigning 10.3d to return 10.3.

                1 vote
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                  1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                • Webview crash with too long URIs

                  Web view crash with too long URIs
                  When redirecting from a webpage to a non supported URI that is longer than 2084 characters the Webview will crash without the throwing any exception.
                  The weird part about this is that if you redirect the webview to a URI starting with http:// or https:// or you send it to a malformed URI (someting:aLotOfText) of the same length it will be able to handle it.

                  Example repository:
                  https://github.com/jeroen1602/UWPWebviewCrash

                  1 vote
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                    1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                  • DatePicker date bug when system timezone changes

                    There seems to be a bug in the DatePicker control that appears when the system TimeZone changes.

                    This can be easily reproduced, start by creating a UWP app that has the DatePicker control, and a TextBlock below it, bind them both to a DateTimeOffset object that will contain the value of DateTime.Now.

                    Reproduction steps:
                    1) Start the app, controls show DateTime.Now
                    2) Use TZUTIL in CMD to change Timezone to something that makes the date change (For instance, from UTC-12 to UTC+14)
                    3) Update controls with DateTime.Now

                    Expected: DatePicker shows DateTime.Now.
                    Actual: DatePicker shows old day, when opened shows correct…

                    5 votes
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                      2 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                    • FeedbackHub link is broken in Windows 10 1809

                      If you set project target version to 1809 and you try to use this official example for launching feedback hub:

                      https://docs.microsoft.com/en-us/windows/uwp/monetize/launch-feedback-hub-from-your-app

                      It will crash the app. Here is also full code example of this problem: https://1drv.ms/u/s!ArB5XyXKJ9ZWhjheAPPpeRA1rBWe

                      It's very problematic because now 1809 is available almost everyone and feedback hub launch link itself is broken in 1809. I had to revert it to 1803 to get it working.

                      1 vote
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                        0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                      • [UWP] BitmapDecoder.Properties.GetPropertiesAsync causes app window to hang indefinitely for web and heic images

                        Calling BitmapDecoder.Properties.GetPropertiesAsync (with any argument) cases the app window to hang indefinitely if the image the decoder is decoding is a webp or hiec image. Support for these has been added in Windows version 1809, which I am using and I'm also using the corresponding SDK version. Interestingly, the lower level WIC APIs are fine, and also the BitmapEncoder can set properties fine. Please can this bug be fixed?

                        1 vote
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                          0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                        • Xbox Dev Mode Companion installed means that sometimes connected Xbox randomly boots

                          Having installed and used the app, I have found that the previously connected to Xbox boots randomly of its own accord. I have also seen this happen with a colleague's Xbox after I recommended using the app.

                          1 vote
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                            0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                          • Setting Width based on ActualWidth introduces render bug

                            When I set the width of a Grid inside a ListView.ItemTemplate to the ActualWidth of the Parent ListView, the first element won't render content. If I remove it, the first line renders correctly. If I remove/re-add that line or add a name/remove a name property, some redraw happens and the first line becomes visible. I tried to work around it to force an UpdateLayout on the elements, but to no avail.

                            I packaged the app, tested it on a clean laptop in dev modus and it occurs there as well.

                            I can provide the sample app that i created in…

                            1 vote
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                              1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                            • Apps targeting [1809] 17763 will not display Acrylic (Noticeably in NavigationView)

                              At first, I noticed Windows Security has no Acrylic in its NavigationView. However, any app I design that targets the [1809] 17763 SDK will not display acrylic, when 1803 apps will display it.

                              1 vote
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                                0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                              • Compilation of {x:Bind} to a global / static ViewModel fails when using Mode OneWay or TwoWay

                                Compilation fails with error CS1061 in MainPage.g.cs: "MainPage.MainPage_obj1_Bindings" does not contain a definition for "bindingsTracking" and no extension method "bindingsTracking" accepting a first argument of type "MainPage.MainPage_obj1_Bindings" could be found.

                                This is the same error that was marked Completed here:

                                https://wpdev.uservoice.com/forums/110705-universal-windows-platform/suggestions/19316077-compilation-of-x-bind-to-static-fields-fails-if

                                5 votes
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                                  3 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                • Features and What's new in this version don't show up on the store for my products

                                  Features and What's new in this version don't show up on the store for my products. I have added all the information to the store, but they still don't show up. This issue apply to both Scrble Ink and Scrble Lite products.

                                  1 vote
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                                    0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                  • [UWP] Files created with DownloadsFolder.CreateFileAsync cannot be loaded with StorageFile.GetFileFromPathAsync

                                    Files created with DownloadsFolder.CreateFileAsync cannot be loaded by the full path name with StorageFile.GetFileFromPathAsync. This doesn't really make sense as the documentation states, "All apps can create files and folders in the Downloads folder and can access the files that they create". Attempting to do this results in the following error:

                                    Exception thrown: 'System.UnauthorizedAccessException' in System.Private.CoreLib.dll
                                    WinRT information: Cannot access the specified file or folder (C:\Users\{Username}\Downloads\{PackageName}_y356m3t891zm4!App\{FileName}.pdf). The item is not in a location that the application has access to (including application data folders, folders that are accessible via capabilities, and persisted items in the StorageApplicationPermissions lists). Verify that the file…

                                    3 votes
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                                      1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Broken download for Application Builder for WEC 2013

                                      In "Application Builder for Windows Embedded Compact 2013" Download of "AppBuilderSetup_VS2015_v25520.zip" is broken. You only get a 0 length txt file when you try to download it

                                      1 vote
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                                        0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                      • PointerPressed event only fired on right-click

                                        Hi,

                                        I've opened a new UWP project and added this button to the main page:

                                        <Button PointerPressed="Button_PointerPressed" PointerReleased="Button_PointerReleased" ... />

                                        I've put a breakpoint in the event handlers, and they only fire when the right mouse button is clicked.
                                        On a left-click, nothing happens.

                                        1 vote
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                                          0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                        • [UWP] SoftwareBitmapSource uses far too much memory

                                          Currently SoftwareBitmapSource is the main way to display programmatically modified images without using Direct2D. However, the memory usage of SoftwareBitmapSource is currently very prohibitive.

                                          In my testing (using C#), the SoftwareBitmapSource uses twice as much memory as the SoftwareBitmap itself, so you end up with three times the memory of the decompressed image being used. This seems completely unnecessary. It ought to be possible for the SoftwareBitmapSource to use the data from the SoftwareBitmap directly and therefore not use any additional memory (except maybe some for rendering to the screen, but this should be small if the size of the…

                                          1 vote
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                                            0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
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