Binding to a MainViewModel command from an ItemsControl Button in Avalonia

Question

I am trying to create a ReactiveUI MVVM binding from an ItemsControl Button in Avalonia In WPF this would be done via a Freezable BindingProxy. However, it looks like Freezable isn't available in Avalonia. How should such a binding be created?

            <ItemsControl Items="{Binding MyQueue}">
              <ItemsControl.ItemTemplate>
                <DataTemplate>
                  <Button Content="My Button"
                          HorizontalAlignment="Center" VerticalAlignment="Center"
                          CommandParameter="{Binding}"
                          Command="{Binding MySpecialCmd}"/>
                </DataTemplate>
              </ItemsControl.ItemTemplate>
            </ItemsControl>

References:
https://stackoverflow.com/questions/22073740/binding-visibility-for-datagridcolumn-in-wpf\ https://thomaslevesque.com/2011/03/21/wpf-how-to-bind-to-data-when-the-datacontext-is-not-inherited/

Answer 1

Big thanks to @maxkatz6 on the AvaloniaUI gitter. Here is the solution:

{Binding $parent[ItemsControl].DataContext.MySpecialCmd}

           <ItemsControl Items="{Binding MyQueue}">
              <ItemsControl.ItemTemplate>
                <DataTemplate>
                  <Button Content="My Button"
                          HorizontalAlignment="Center" VerticalAlignment="Center"
                          CommandParameter="{Binding}"
                          Command="{Binding $parent[ItemsControl].DataContext.MySpecialCmd}"/>
                </DataTemplate>
              </ItemsControl.ItemTemplate>
            </ItemsControl>