Universal Windows Platform

Welcome to the Windows Platform Developer (WPDev) Feedback site. This feedback forum provides the WPDev community with a channel for feedback on the following topics:

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

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  • Documentation on docs.microsoft.com
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If you’re new to this whole UserVoice thing, we’d like to note two important things about this site: (a) List items (and item rankings) represent community interest in features, and does not represent an 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.

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  1. 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…

    165 votes
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      13 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.

    • Changing DataContext modifies previously bound view model

      Using the fall creator's update version of UWP, it seems that when a data context is changed to a new view model, the previous view model is updated with null values. This is the same as if the DataContext is set to null before changing view models. It doesn't make sense why the bound values are updated when the DataContext is changed.

      2 votes
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        8 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
      • [Bug] Windows Explorer drag from screen 1 to 2

        I have a Windows 10 notebook with a second screen. And I have a problem with windows explorer that it breaks every time when I try to move from one screen to another.

        I just figured out what was the problem and I can work with it without any problem, but I want to post it to see if it can be fixed for another user.

        How to emulate the bug
        - Open windows explorer:
        - resize the windows explorer window to something like 300px to 300px
        - maximize the window
        - Now with the mouse pointer, click on the…

        1 vote
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          0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
        • ucrtbase bug: isalnum() is broken in RS4

          What:
          isalnum(-1) returns true for some codepages.

          Code for reproducing:

          #include <stdio.h>
          #include <ctype.h>
          #include <locale.h>
          void main()
          {
          printf("before locale: %d\n", isalnum(-1));
          setlocale(LC_ALL, "English_United States.1251");
          printf("after locale: %d\n", isalnum(-1));
          }

          Compile using "cl test.cpp /MD" and run under RS4.

          The output is:
          before locale: 0
          after locale: 258

          Please fix.

          1 vote
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            0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
          • Microsoft's internet site does not work normally with IE

            The following page https://www.visualstudio.com/vs/preview/ does not work in IE. I cannot expand FAQ entries and so on. The page above also recommends me to set up the MS Edge. The MS Edge is incompatible with my LTSB system. See https://docs.microsoft.com/en-us/microsoft-edge/deploy/hardware-and-software-requirements .
            My idea is either to fix the Internet (I have problems not only with https://www.visualstudio.com/vs/preview/ but with some other sites too -- GitHub warns me to update too) or the MS LTSB systems (personally I am interested in MS Windows Server 2016).
            Thank you.

            1 vote
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              0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
            • Header is missing in the given PDF when rendered using PdfDocument API

              In UWP, I extract the pages of a PDF using the method PdfDocument.GetPage(UInt32 pageIndex) and save the page as image to the local disk using PdfPage.RenderToStreamAsync(IRandomAccessStream outputStream). In the saved image the headers in the PDF pages are not rendered.

              The sample and the PDF document can be downloaded from the link below.

              https://1drv.ms/u/s!Am9BJQE8rPjqiMNHbwPO-P7lMwYX7A

              Best,

              Navaneetha Kannan

              1 vote
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                0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
              • PasswordBox with NumericPin overrides InputScope for other controls

                We are experiencing an issue where the presence of a PasswordBox with a NumericPin InputScope overrides the InputScope of other controls on the page--until the PasswordBox has received focus.
                On a touch screen, this manifests every time a user reaches the first page in our UWP App that has a NumericPin-scoped PasswordBox.
                Repro steps:
                1) Create a new "Blank App" UWP project
                2) Add the XAML below to MainPage.xaml
                3) Build and run the app
                4) Before doing anything else, click the "Show touch keyboard" button in the notification tray such that the touch keyboard appears.
                5) See that the…

                6 votes
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                  1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                • Binding something that is NOT an ICommand to an event gives an exception in the XAML compiler WCM9999: Object Reference not set

                  In UWP XAML binding something that is NOT an ICommand to an event gives an exception in the XAML compiler WCM9999: Object Reference not set to an instance of an object.

                  Take any XAML page add a button to it and bind it to any normal, as in not a command, on the view model. Compile the app and the Xaml compiler throws the exception.
                  I would expect it to catch this an give a readable error message about an invalid binding, idealy the propertyname and the control type at least. Something that lets you investigate.

                  1 vote
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                    0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                  • Click/Tapped event can be invoked multiple times in a single instance and crashes application

                    Hello,
                    on Windows 10 UWP apps, if you rapidly click or unintentionally double-click on any control supporting click/tapped event, its associated Click event handler will execute for each. This can cause a lot of unintended side effects.
                    For example, if the Click event handler brings up a modal ContentDialog with the ShowAsync command, an additional click will cause the event handler to fire again before modal isolation occurs and create another ContentDialog, which causes an exception, if not handled will result in a crash of the application. In my opinion, developers should not have to do this to prevent multiple…

                    1 vote
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                      0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                    • 1 vote
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                        0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                      • Inconsistent behavior of MediaPlayer StepForwardOneFrame and StepBackOneFrame methods

                        Repeatedly calling MediaPlayer.StepForwardOneFrame() `MediaPlayer.StepBackOneFrame() should switch between two frames, but video is moving slightly back.

                        Repository on github: https://github.com/tesar-tech/MediaPlayerFrameMoveInconsistentBehavior

                        1 vote
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                          fine feedback. :)  ·  3 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                        • BUG: Setting PreferredLaunchWindowingMode before PreferredLaunchViewSize is set results in undefined behavior

                          BUG: Setting PreferredLaunchWindowingMode before PreferredLaunchViewSize is set results in undefined behavior

                          Repro project:
                          https://github.com/riverar/fuzzy-chainsaw

                          Documentation:
                          https://docs.microsoft.com/en-us/uwp/api/windows.ui.viewmanagement.applicationview#Windows_UI_ViewManagement_ApplicationView_PreferredLaunchViewSize

                          Credits:
                          David Golden (@GoldenTao), Rafael Rivera (@WithinRafael)

                          11 votes
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                            1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                          • ContentDialog and x:Bind issues

                            When you invoke the primary or secondary buttons in a ContentDialog, you are not losing focus in the control that was last being edited. If you are using x:Bind to bind that control's value to a property in the ContentDialog code-behind page, then when you press the primary button the property doesn't get updated.
                            I've tried forcing the control (in this case a TextBox) to lose focus programmatically in the Primary buttonevent handler, but this does not help. Ive also tried Bindings.Update - bit this does not help either.

                            The expected behaviour is that when you click on the Primary…

                            1 vote
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                              1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                            • combo

                              UWP combobox is not showing the selected value under certain resolutions. This was found on a windows tablet but can be replicated on a windows PC by changing the scale in the display settings to 150%

                              In visual studio, if I select the container (a grid) and change something like the flow from horizontal to vertical, the redraw fixes the issue which leads me to believe that it's the render.

                              1 vote
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                                0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                              • File create date

                                We use the Create Date on log files to check if they can be deleted.
                                The problem is that when we delete that file and recreate it (same filename) the create date stays the same!

                                Here is a small c# sample to prove it.

                                How to reproduce.
                                Run the code. It creates a test.log file. Check the Create date on the file. Example: 2018-02-07 16:05
                                Run the code again. It deletes the file.
                                Wait one minute (so the clock shows a new minute) and the run the code again. The test.log file is created again.
                                Check the create on the…

                                1 vote
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                                  0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                • Give users the option to disable automatic application starts after restart

                                  The new fall creators update seems to have introduced a 'feature' where if a user reboots the system, any applications that were open (well, some at least, it seems as though to make this issue even more confusing, not all applications follow this convention) will automatically launch on reboot.

                                  Some users certainly will find this useful. Others may find this annoying.

                                  Sadly, if you're someone who finds this annoying, there's no option to disable this behavior.

                                  According to the singular post I was able to find on this new feature (https://answers.microsoft.com/en-us/insider/forum/insider_wintp-insider_desktop/programs-autostart-after-boot-in-windows-10/09dd8d3e-7b36-45d1-9181-6587dd5d53ab?page=2&auth=1) there is no way to disable this.

                                  1 vote
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                                    0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                  • 125% DPI crash on Slider control

                                    it is similar like this issue : http://www.dcfever.com/cameras/specification.php?id=1620

                                    We've inherit a control from Slider and put it in horizontal. If Windows set to 125% DPI and when slider value is the same as its maximum value. Our App would crash.

                                    1 vote
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                                      1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Collapsed Image Element make Win32 Exception in Target=build 16299

                                      In UWP Project, follow XAML code make a Win32 Exception when minimum target is build16299. large.jpg has 16000x16000 pixels.
                                      <Image Source="Assets/large.jpg" Visibility="Collapsed"></Image>
                                      This issue was reported for Visual Studio Feedback Site, but They have determined that this issue belongs to universal windows platform.

                                      1 vote
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                                        0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Text predication can’t be disabled on computers

                                        Create a new blank UWP application and add this XAML code:

                                        <TextBox HorizontalAlignment="Stretch" IsSpellCheckEnabled="False" IsTextPredictionEnabled="False" />

                                        When I run this, I expect to get no suggestions in the software keyboard when writing anything in the text box. This works as expected on phones but not on computers/tablets.

                                        I'm using Fall Creators update, not sure how it behaves in other versions. It is possible to disable suggestions in the settings, but I guess apps should be able to disable this themselves. In my case I'm writing an app where you learn how to spell and don't want to give the user…

                                        1 vote
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                                          0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Fix RichEditBox ProtectedText doing nothing

                                          Setting ProtextedText to On doesn't work, the selected text is still modifiable.

                                          Example:
                                          Editor.Document.Selection.CharacterFormat.ProtectedText = FormatEffect.On;

                                          Editor is the value of x:Name given to RichEditBox element.

                                          2 votes
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                                            0 comments  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
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