绑定时在WPF菜单项中使用下划线

Question

I've created a Recent Files menu item to which I bind a collection of recent file view models.

<MenuItem Header="_Recent Files" ItemsSource="{Binding RecentFiles}" Command="{x:Static pm:MainWindow.RecentFileListCommand}">
    <MenuItem.ItemContainerStyle>
        <Style>
            <Setter Property="MenuItem.Header" Value="{Binding}"/>
            <Setter Property="MenuItem.Command" Value="{x:Static pm:MainWindow.RecentFileOpenCommand}"/>
            <Setter Property="MenuItem.CommandParameter" Value="{Binding FilePath}"/>
        </Style>
    </MenuItem.ItemContainerStyle>
</MenuItem>

I want the list numbered, and I want the numbers to be used as the shortcut (exactly how Visual Studio does it). My view models have a Number field and Name field. I override the ToString() method to return a header including the underscore:

return string.Format("_{0} {1}", Number, FilePath);

However, when bound, the underscore is seen as a literal and displays as part of the header text (not the shortcut). I also tried using HeaderStringFormat without luck:How can I get WPF to see the underscore as the shortcut and not a literal string?

Answer 1

Could try to return an AccessText , though it might break separation of concerns.

As mentioned by Matthew Whited , a cleaner way would be to return the string only and use a converter to turn it into an AccessText . Alternatively use the HeaderTemplate and create it there.