如何在 Avalonia MVVM 应用程序中使用 InputGesture 实现 MenuItem？

Question

I need a Menu with InputGesture like in the picture here: https://github.com/AvaloniaUI/Avalonia/pull/3602

Starting in Microsoft Visual Studio Community 2019 with a new Avalonia MVVM Application, I try to set up the XAML in Visual Studio to achieve this:

<MenuItem Header="New" InputGesture="CTRL + N" />

This line then results in the error message:

Unable to resolve suitable regular or attached property InputGesture on type Avalonia.Controls:Avalonia.Controls.MenuItem

I found a working sample here: https://github.com/AvaloniaUI/XamlControlsGallery

I'd try to build my Solution and Project based on that example to get it working. But I would prefer being able to implement it on a new Avalonia MVVM Application build from scratch with Visual Studio. Hints are very appreciated.

Answer 1

InputGesture is available starting with 0.10.0-preview1 , it's not available in the stable 0.9.x branch. XamlControlsGallery is using the preview version.

Answer 2

For the time being the new features are not documented in Avalonia Docs , it may be useful for others to see my findings.
My goal was to create menus with shortcuts containing numbers (eg Alt+0 ).
In pure WPF (without Avalonia) the value "Alt+0" can be assigned to the tags representing a menu with shortcut.
In Avalonia however the values must correspond to the enum Key in Key.cs .
Otherwise the mentioned example menu would display Alt+None instead of Alt+0 , and command binding wouldn't work as expected.
This is an example XAML line to display the menu and bind the command as desired:

<MenuItem Header="Menu 0" InputGesture="Alt+D0" HotKey="Alt+D0" Command="{Binding Alt0Command}"/>