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. Allow C# style boolean conversion with x:Bind

    With x:Bind we can invert a boolean property with a ValueConverter like this:

    Visibility="{x:Bind IsLoading,Converter="{StaticResource BooleanInverseConverter}"

    But wouldn't it be much cleaner for that widely used boolean case to write just this:

    Visibility="{x:Bind !IsLoading}"

    To generated the code should be possible, and also to check in that generation whether IsLoading is a boolean or not. Even without checking, it won't compile if IsLoading wouldn't be a boolean, which is fine.

    Thanks,
    Thomas

    25 votes
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      3 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
    • VisualState setters should support custom attached properties

      The VisualStateManager ignores Visual State Setters using custom attached properties. This works with normal attached properties, so it's confusing that it doesn't work for custom ones. The hack to get this to work is really ugly and requires custom code for every case using reflection: https://social.msdn.microsoft.com/Forums/expression/en-US/0f9826e1-48d2-4cd7-8253-a5b9aaf0e03d/uwpadaptative-triggers-with-custom-attached-properties-in-windows-10-uwp

      4 votes
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        2 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.

        11 votes
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          2 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.

          10 votes
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            0 comments  ·  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…

            17 votes
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              2 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.

              11 votes
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                1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
              • 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.

                367 votes
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                  86 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                • Several ListView pen input issues when DragToReorder is enabled

                  We're seeing a range of interaction glitches with the ListView control in UWP, when the "drag to reorder" behavior is enabled. You can see this in the standard UWP demo, DragAndDropSampleNative, in its first section ("drag and drop to reorder"). Compare the behavior between the leftmost list ("All items") which has no drag-to-reorder and the second list ("Selection").

                  1) When using pen on a ListView to scroll (standard OS behavior since Windows 1709), almost every time you stop scrolling / lift pen, there's a "flash" on the ListView - it grays out briefly and then returns to normal.

                  2) When…

                  2 votes
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                    1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                  • Allow x:DefaultBindMode on App Element in App.xaml

                    Today we have the x:DefaultBindMode attribute to define the default binding mode generated for a compiled data binding created with x:Bind.

                    We can set that mode on an element or on a parent element.

                    It would be a huge advantage to support this attribute also on the App-object in the App.xaml-file, and to make this the "ultimate root".

                    This would allow me to specify an application wide default binding mode, and I could set it in this single place for example to OneWay.

                    3 votes
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                      1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                    • Text Trimming should support a Position

                      Sometimes you want text trimming to occur from the left or middle like "...some of my text." or "C:\Long Path...\somefile.txt". The TextBlock TextTrimming property should have an auxiliary TextTrimmingPosition property which defaults to Right, but can also be set to Middle or Left to support the same types of scenarios but in the other locations.

                      2 votes
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                        0 comments  ·  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...

                        4 votes
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                          3 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                        • Please support a vertically oriented text block for East Asian languages.

                          Add vertical orientation to the default text block for East Asian languages.

                          1 vote
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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…

                            5 votes
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                              working on it  ·  1 comment  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                            • get list of installed fonts / system fonts

                              Unfortunately UWP is still missing a way to simply get a listing of fonts in the system, using C#.

                              Previously, before UWP, this was done via:
                              System.Windows.Media.Fonts.SystemFontFamilies
                              System.Windows.Media.Fonts.SystemTypefaces

                              It would also be useful to make a method to determine whether a particular font exists in the system (font specified by name or file name, and it should be able to tell us whether that font exists). Or at least the ability to get the listing of fonts.

                              1 vote
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                                0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                              • Ability to type when using TimePicker

                                It's a pain to use the TimePicker control on desktop. When selecting the minutes, you have to scroll through a huge list of 60 numbers...

                                Instead, you should be able to just type "45" to select 45!

                                I'm using the time picker in my app, Power Planner, and two users have complained about this (and I've complained about it myself). This should be part of the built-in control! It's quite terrible to use on desktop presently!

                                1 vote
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                                  0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                • GridView multiple selection using mouse rectangle selection

                                  UWP's Gridview has only Single/Extended/Multiple selection methods. There is no selection method by mouse rectangle selection, like we select in windows explorer. i.e. click-drag to draw a rectangle to select multiple GridView items, using mouse.

                                  1 vote
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                                    0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                  • TreeView control has poor selection experience

                                    The new TreeView control has a poor selection experience for unexpandable nodes. The user cannot click in the area to the left of the item's content in order to select the item - there is a "gap" that is filled by the expand/contract chevron, which is present for an unexpandable item but has its Opacity set to 0 (hence: not clickable). The user tries to select the item but cannot. This is a very poor user experience as the rest of the item can be clicked to select it. The user has no idea why sometimes clicking to select works,…

                                    1 vote
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                                      0 comments  ·  XAML/Controls/Composition  ·  Flag idea as inappropriate…  ·  Admin →
                                    • [UWP] Add an alternative Tapped event that fires even if double tapped

                                      In UWP, the Tapped event does not fire on a UIElement for the second time if it is double tapped. There are many situations where is necessary to handle rapid tap events from the user as separate taps, not double taps.

                                      Now you may think that the IsDoubleTapEnabled property can solve this. However, this property does not do quite what you think it might. It merely prevents a UIElement from being the OriginalSource of a double tapped event. So if you set it on an element with a template (e.g. a button etc), it does nothing, since the double tapped…

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