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InputView reading order on Windows

  • Artikel

This .NET Multi-platform App UI (.NET MAUI) Windows platform-specific enables the reading order (left-to-right or right-to-left) of bidirectional text in Entry, Editor, and Label objects to be detected dynamically. It's consumed in XAML by setting the InputView.DetectReadingOrderFromContent (for Entry and Editor objects) or Label.DetectReadingOrderFromContent attached property to a boolean value:

<ContentPage ...
             xmlns:windows="clr-namespace:Microsoft.Maui.Controls.PlatformConfiguration.WindowsSpecific;assembly=Microsoft.Maui.Controls">
    <StackLayout>
        <Editor ... windows:InputView.DetectReadingOrderFromContent="true" />
        ...
    </StackLayout>
</ContentPage>

Alternatively, it can be consumed from C# using the fluent API:

using Microsoft.Maui.Controls.PlatformConfiguration.WindowsSpecific;
...

editor.On<Microsoft.Maui.Controls.PlatformConfiguration.Windows>().SetDetectReadingOrderFromContent(true);

The Editor.On<Microsoft.Maui.Controls.PlatformConfiguration.Windows> method specifies that this platform-specific will only run on Windows. The InputView.SetDetectReadingOrderFromContent method, in the Microsoft.Maui.Controls.PlatformConfiguration.WindowsSpecific namespace, is used to control whether the reading order is detected from the content in the InputView. In addition, the InputView.SetDetectReadingOrderFromContent method can be used to toggle whether the reading order is detected from the content by calling the InputView.GetDetectReadingOrderFromContent method to return the current value:

editor.On<Microsoft.Maui.Controls.PlatformConfiguration.Windows>().SetDetectReadingOrderFromContent(!editor.On<Microsoft.Maui.Controls.PlatformConfiguration.Windows>().GetDetectReadingOrderFromContent());

The result is that Entry, Editor, and Label objects can have the reading order of their content detected dynamically:

InputView detecting reading order from content platform-specific.

Note

Unlike setting the FlowDirection property, the logic for views that detect the reading order from their text content will not affect the alignment of text within the view. Instead, it adjusts the order in which blocks of bidirectional text are laid out.