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:

  • Windows developer platform (APIs, runtimes, and controls)
  • Dev Center (developer portal, back-end services, reporting/analytics and process)
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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.

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  1. Modern Windows UI in Win32 desktop applications

    Bring modern Windows UI to existing Win32, WPF and Windows Forms desktop apps with the option to adopt islands of Windows.UI.Composition and Windows.UI.XAML content incrementally. Allows desktop apps to incrementally adopt UI innovations and creates a bridge to UWP for app UI.

    353 votes
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      85 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
    • 3D Volumetric Content in the Visual Layer/ XAML

      Enable 2D application developers to easily use 3D volumetric content in XAML/Composition by configuring spatial scenes and manipulating transforms and skeletal animations.

      7 votes
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        1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
      • SwipeControl should support mouse input

        The SwipeControl control should support mouse input as well as touch input. Currently it only supports touch input.

        I appreciate that swipe controls have come out of developments around touch interfaces. However on a platform that allows for a single app to run on both desktop and touch devices I think that users will be expecting to be able to interact with the app in similar ways across devices.

        Microsoft have set precedent for this in their own apps. Outlook for example utilises a SwipeControl type arrangement (that can be interacted with using a mouse) for marking emails as read…

        8 votes
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          1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
        • 1803 NavigationView built-in back button placement looks terrible.

          For 1803, I like that the backbutton is now built-in to the NavigationView control. However, the placement of the button looks terrible next to the hamburger button.

          I was actually excited to see it was built into the Nav control because i can't figure out where to place the backbutton either such that it doesn;t look weird and out of place... but, the built-in nav backbutton doesn't solve the problem either... it still look weird and extreme beta...

          3 votes
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            3 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
          • UWP Grid should have ShowGridLines property from WPF

            The WPF Grid control had a ShowGridLines property. This is helpful for layout debugging. This property is missing in UWP.

            3 votes
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              0 comments  ·  XAML/Controls/Composition  ·  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 →
              • 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 →
                • Add ConstraintsPanel

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

                  1 vote
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                    2 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                  • Load PathIcon "data" from svg file added to project

                    Suggestion for Pathicon "DataUri Property" for loading PathIcon from a Svg File, instead of specifying messy vector strings, nobody really wanted to put this stuff ("F1 M 16,12 20,2L 20,16 1,16") in their xaml. Example:

                    <PathIcon
                    DataUri="ms-appx:///Svg/MyButton.svg"
                    HorizontalAlignment="Center"/>

                    Notice: "DataUri Property" and Resource path ms-appx:/// pointing to svg file added to visual studio project under an Svg folder.

                    Another possibility is to allow DataUri to point to a text file holding this type of stuff: "F1 M 16,12 20,2L 20,16 1,16". Example:

                    <PathIcon
                    DataUri="ms-appx:///PathIcons/MyButton.txt"
                    HorizontalAlignment="Center"/>

                    Then, MyButton.txt can contain:

                    "F1 M 16,12 20,2L 20,16 1,16".

                    1 vote
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                      1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                    • Support Multiple Functions for x:Bind

                      The following example doesn't show an error in the Designer, but throws errors in the generated code. If I add a (x:Int32) case before the inner function I get a 'Functions cannot have other functions as parameters' error.

                      Width="{x:Bind exf:Bind.Clamp(exf:Bind.Subtract(ContentHolder.(ex:FrameworkElementExtensions.ActualWidth), 30), 100, 300)}"

                      It'd be great if we could chain functions together in x:Bind to create more complex expressions. The above case is trying to subtract from the width of another element, but clamp it within a specific range.

                      Rather than writing a specific function for this purpose, it'd be nice if it could be composed of individual pieces that…

                      2 votes
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                        on the backlog  ·  1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                      • UWP ListView scrolling does not keep up with touchpad/mousewheel scrolling

                        I made a UWP app with a ListView (using KeepLastItemInView).
                        On many systems (probably the slower ones), the scrolling behavior is very odd. Using the touchpad/mousewheel, the scrollbar starts moving, but not the contents of the ListView. After a while the contents start moving, but there is no way to move to the very top or very bottom using only the touchpad/mousewheel. I need to drag the scrollbar using the mouse to go the bottom/top of the ListView. This behavior is not consistent. On other systems is works as expected.

                        1 vote
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                          0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                        • Horizontal Layout for ColorPicker control

                          The existing color picker have a very long height. Most of the screen a wide, so why not a horizontal layout for ColorPicker.

                          I know this will be simple, just edit the style, but I can't make it right

                          1 vote
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                            0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                          • Navigation View should be more consistent. Collapsing back button leads to very ugly look when the view is extended to title bar.

                            Collapsing back button leads to very ugly look when the view is extended to title bar. Even the hamburger button does not work properly when using extended view and collapsed back button. In minimal mode,
                            the hamburger button is on the side of the back button. Nav View should be made a full proof solution for developers. Nav View should be more integrated to the application so that the app is consistent.

                            1 vote
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                              0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                            • Make Textblock support ReadOnlySpan<T> and ReadOnlyMemory<T>

                              Since we are passing a string via the x:Bind attribute to some UI controls, it would be nice if we could make the binding to a ReadonlySpan<T> so we avoid allocations. This can be very benefitial in datatemplates in Listviews and Gridviews.

                              2 votes
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                                0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                              • MenuFlyout.ShowAt shows unwanted white background in W10 1803

                                When using MenyFlyout.ShowAt(FrameworkElement, Point) with MenuFlyoutPresenter Style with rounded corners or other semitransparency, unwanted white background is shown under it in Windows 10 1803. This was not happening before on Windows 10 1709 or earlier.
                                Our app is using MenuFlyout with shadow effect a lot, so it's causing us lot of headache right now.
                                Bug preview: https://imgur.com/a/T7yvC3q
                                Bur repro: https://1drv.ms/u/s!AlURSa6JiyiVo6lgh--Ig5Nnl3MUMg

                                1 vote
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                                  0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                • Select Treeview node from code

                                  The TreeView (from Windows Update 1803) lacks the possibility to select a ceirtain TreeViewNode from code.

                                  For example an "IsSelected" property could be added to a TreeViewNode or a function like selectNode(TreeViewNode) to the TreeView.

                                  1 vote
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                                    0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                  • VS XAML editor needs FontIcon Wizard for selecting chars and nuget'ing new fonts

                                    I think Microsoft should add a new property to FontIcon that combines "FontFamily" and "Glyph" into a single Uri Property, call it "GlyphUri". (Example: GlyphUri="ms-appx:///Fonts/MyFont.ttf?glyph=A")

                                    And when you type GlyphUri in the VS XAML Editor and type equal sign, it pops up an opinions menu to open a "FontIcon Wizard".

                                    If you open the FontIcon Wizard, it looks similar to the old Windows "CharMap" Application, Except it also has an extra button called "Manage Fonts", When you click it you get a Font Management Page that lets you "Add New Font" from your harddisk, "Download a New Font" from nuget...etc...…

                                    1 vote
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                                      0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                    • drag and drop from Project Tree to XAML expands to "ms-appx:/// path"

                                      Would be nice if you could drag your file from the Project Tree over to a Xaml property requiring an "ms-appx:///" path and it would expand to an ms-appx:/// path instead of a fullpath to the file on your filesystem?

                                      example:

                                      <BitmapIcon UriSource="ms-appx:///Assets/icon/1.png"/>

                                      getting the ms-appx path correct and not mistyped is a serious pain in the neck... that's why Microsoft should let people drag and drop them from their project tree in ms-appx path format....

                                      1 vote
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                                        0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                      • TextBox control need HeightLines property

                                        Would be nice if you could set the height of a TextBox using number of Lines. Example:

                                        <!-- Set TextBox Height to 10 lines (REQUESTED FEATURE)-->
                                        <TextBox HeightLines="10" AcceptsReturn="true"/>

                                        <!-- Set TextBox Height to 300 pixels (CURRENT ONLY PIXELS)-->
                                        <TextBox Height="300" AcceptsReturn="true"/>

                                        The reason why its a good idea to add a HeightLine property is that it allows everything to be done in XAML, setup the FontSize, FontFamily, and the Pixels size automatically to expand to match exactly 10 lines. Previously, this is messy because it requires setting from C# code, to measure height of font and multiply by number…

                                        1 vote
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                                          0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Add SelectedBackground property to CalendarView

                                          It would be convenient to have a SelectedBackground property for CalendarView. Its usage would be similar to SelectedForeground and SelectedBorderBrush:

                                          SelectedBackground property - Gets or sets a brush that provides the background of a calendar item that's selected.

                                          1 vote
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                                            0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
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