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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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.

How can we improve the Windows dev platform?

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  1. Improve MarkupExtension and relatives (as Binding, name scope and the XAML interpreter)

    The current implementation of MarkupExtension in UWP is hardly usable as it is.
    And some implementation choices are unfortunate.

    My proposal:

    1. A GetTarget() function should be added to MarkupExtension.
    Because ProvideValue() does not give any way to retrieve the target control and property.
    Knowing the XAML Control and property that have instantiated the markup extension is essential in many, if not most, scenarios.
    Please note WPF let retrieve this information.

    2. For the class that inherit MarkupExtension, the constructor parameters should be taken into consideration by the XAML interpreter.
    In order to be able to write things like:
    Property="{MyMarkupExtension…

    2 votes
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      0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
    • Add Binding by DependencyProperty in addition to string in PropertyPath (code behind)

      It's not possible to bind to a custom attached property in a different namespace in code behind. Binding in WPF the PropertyPath took the DependencyProperty itself as an argument, so you could do this. In UWP, it only takes a string instead which will throw an exception if given a namespace. It'd be great for the PropertyPath in UWP to also work the way WPF did and take the DependencyProperty to create the binding path from any source.

      2 votes
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        0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
      • 2 votes
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          0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
        • WEBVTT timed texts bug in media element

          If first cues start/end time is in "mm:ss" format, and continues with format "h:mm:ss" - they will not be parsed and not showed in TimedMetadataTrack.Cues list.

          For example:

          59:53.230 --> 59:56.480
          It works.

          59:57.280 --> 1:00:00.990
          But it is not parsed

          1:00:01.740 --> 1:00:04.080
          Also not parsed

          Example vtt file link:
          https://smotret-anime.ru/translations/vtt/1781022

          1 vote
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            1 comment  ·  Bugs  ·  Flag idea as inappropriate…  ·  Admin →
          • Issue with Scroll Bar

            Hello guys,

            I experienced problem with UWP ListView, particularly using ISupportIncrementalLoading interface as a datasource.

            A few words about problem context:
            In our UWP app there is a ListView, and it uses ISupportIncrementalLoading as a DataSource.
            And while next part of data is loading, ListView is disabled.

            So, the problem in that if you scroll ListView in way you catch ScrollBar and pull it to the down,
            when you scroll to the end of the list, ListView will be disabled for some period of time (while data is loading).
            And if you release mouse button from ScrollBar
            while ListView is…

            3 votes
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              working on it  ·  1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
            • Windows 10 Mobile

              You could rename the Windows 10 Mobile to Windows 10 Watch and you could stop making the Lumia mobile phones but you could start making Lumia Smartwatch with Windows 10 Watch

              5 votes
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                0 comments  ·  Windows Device Portal  ·  Flag idea as inappropriate…  ·  Admin →
              • Add ConstraintsPanel

                Add a panel that allows to create a design with constraints (and support in Blend)

                2 votes
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                  2 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                • Crash on mobile when two MediaCues have the same start time

                  When running a UWP app on Win 10 desktop, I'm able to add two TimedTextCues to a TimedMetadataTrack with the same StartTime, but on mobile it results in a crash. I'm guessing this is a bug because it doesn't produce an understandable exception. If I add the cues to the track before adding the track to mediaSource.ExternalTimedMetadataTracks, the crash happens when adding the track. I reproduced this on Mobile Emulator 10.0.14393.0 WXGA 4.5 inch 1GB and on a Lumia 640 running 10.0.15063.1088.

                  Error:

                  System.Exception: 'Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))'

                  Minimal repro:

                  var mediaSource = MediaSource.CreateFromUri(new Uri("https://mediaplatstorage1.blob.core.windows.net/windows-universal-samples-media/sintel_trailer-480p.mp4")); …

                  2 votes
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                    1 comment  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                  • Middle click scrolling

                    Middle click scrolling is a default feature that is expected by the users. But it is not available by default.

                    It would be nice to have an attached property for ScrollViewer to set middle click scrolling.

                    10 votes
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                      0 comments  ·  UWP Community Toolkit  ·  Flag idea as inappropriate…  ·  Admin →
                    • Windbg preview

                      Windbg Preview Available for Offline Downloads
                      Is there anyway you could make Windbg Preview available for offline downloading? I'm having some trouble with hackers and I would like to keep my machine offline.

                      2 votes
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                        0 comments  ·  SDK - Tools + Templates  ·  Flag idea as inappropriate…  ·  Admin →
                      • Coordinate Bixby with Cortana

                        At Build 2018, support between Cortana and Alexa was announced. I would like to add Bixby to this list. Not only will this benefit both Microsoft and Samsung but put more power into the hands of the users and developers of both (which are many, many people).

                        2 votes
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                          0 comments  ·  Communication APIs  ·  Flag idea as inappropriate…  ·  Admin →
                        • Offer poolmon as standalone application

                          I have a driver causing a memory leak. Microsoft's official support reccomends that I use a tool called poolmon to find which driver is causing the leak.

                          Poolmon is not offered as a standalone tool, and only as part of the Windows Driver Kit, so I must download the entire Windows Driver Kit to access this one small tool.

                          In order to download the Windows Driver Kit, I must first install Visual Studio 2017.

                          I am not going to download multiple GBs of **** that I will never use to fix a memory leak. That just turns my memory leak…

                          5 votes
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                            1 comment  ·  App Extensions  ·  Flag idea as inappropriate…  ·  Admin →
                          • Enable compiled bindings to base members

                            Let's say I have a couple of views and their related viewmodels.

                            The viewmodels have some common logic and common properties that I'd like to put in a base view model class to not repeat myself.

                            And if I have 5 viewmodels deriving from my base view model, and my base view model has the boolean IsLoading property, I want to be able to x:Bind to this IsLoading property from each view.

                            2 votes
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                              1 comment  ·  Framework  ·  Flag idea as inappropriate…  ·  Admin →
                            • Microsoft Advertising SDK for Windows 8 (Xaml) could not be found.

                              I have built an app that targets Windows 8 and the customer is looking for a servicing fix on Windows 8. I have got the fix ready, but in order to produce a fix I need to be able to compile with the Microsoft Advertising SDK for Windows 8 (Xaml). Is there anywhere I can find a copy and download it?

                              2 votes
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                                0 comments  ·  App Extensions  ·  Flag idea as inappropriate…  ·  Admin →
                              • RichTextBlock TextHighlighter crashes if used after an InlineUIElement

                                Exactly as the title says. Attempting to use TextHighlighter(s) with a StartIndex after an InlineUIElement will result in a crash. I have included code to reproduce the issue:

                                C#: https://hastebin.com/owacelasov.cs

                                XAML: https://hastebin.com/ujuxacilug.xml

                                The issue seems to be somewhere in Windows.UI.Xaml.dll!TextBlockViewHelpers::AdjustPositionByCharacterCount(). It appears that garbage data (from the stack, I assume) is being used for the value `curInlineLength`. Call stack: https://hastebin.com/legulilabu

                                1 vote
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                                  1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                • Windows in Android

                                  Is not news that Window mobile won't have a chance against the major OSs out in the market, so I was thinking "why try to implement something new, when what is out there can be used for good on Microsoft side?" So this I have been thinking so far:

                                  Microsoft have a good amount of apps on the Google Play Store. They have a great launcher, Cortana, Outlook, Office for mobile and so on. Why don't build a phone powered by Android but running customized by Microsoft itself.

                                  Read this out: Having a phone that can link to your pc…

                                  2 votes
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                                    0 comments  ·  Device - Phone / Mobile  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Windows Bridge for desktop does not finish process correctly.

                                    Could someone answer my question, please?

                                    The Windows Bridge does not create a correct output files. It looks that it removes something from the folder, but it cannot. I disabled the AV, the result is unsucceesful. What would I do?
                                    A link with a log:
                                    https://stackoverflow.com/questions/50586462/windows-bridge-for-desktop-does-not-finish-process-correctly
                                    It looks like the bridge cannot remove its own folder while cleaning up the environment.

                                    2 votes
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                                      0 comments  ·  Desktop Bridge ('Centennial')  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Fix bug where DNS-SD does not unregister service

                                      There seems to be a bug in DNS-SD where finished services are not actually getting unregistered. So they get stuck in all the networks' devices' cache and never go away.

                                      I have found other reports of people around the internet who have struggled with the same bug, e.g.

                                      https://social.msdn.microsoft.com/Forums/sqlserver/en-US/c6b315ef-bc8d-4b4d-9480-5c736cfac50a/uwpc-unregister-dnssd-service-on-windowsnetworkingservicediscoverydnssd-api?forum=wpdevelop

                                      https://stackoverflow.com/questions/37184169/unregister-dns-sd-service-on-windows-networking-servicediscovery-dnssd-api

                                      I filed one against a Microsoft example on Github here:
                                      https://github.com/stammen/dnssd-uwp/issues/1

                                      2 votes
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                                        0 comments  ·  Network APIs  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Add CanUserEdit for DataGrid

                                        https://github.com/Microsoft/WindowsCommunityToolkit/issues/2316
                                        Currently it detects whether editable itself. This should be configurable by the developer.

                                        1 vote
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                                          0 comments  ·  UWP Community Toolkit  ·  Flag idea as inappropriate…  ·  Admin →
                                        • DataGrid Virtualization

                                          DataGrid should detect IItemsRangeInfo in order to support virtualization.

                                          1 vote
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                                            0 comments  ·  UWP Community Toolkit  ·  Flag idea as inappropriate…  ·  Admin →
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