WPF Metro design: How apply character case with Style?

I'm trying to develop a UI in WPF following Metro design principles - see Scott Barnes website for a gr开发者_开发知识库eat survey.

Character casing is one of Metro milestone, which can be easily achieved in css using text-transform property.

What about WPF control?

It would be useful to declare various style for menu, title, subtitle in a resource file, and modify casing by simply editing the applied style.

Note:

[1] TextBox.CharacterCasing doesn't apply, it involves only manually entered characters.

[2] I can't imagine an appropriate value converter for this task.

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There are a couple approaches to this. On a per-case basis you may want all upper or lower case characters. You can easily apply a ValueConverter which will apply logic and return a value.

Quick example of this type of implementation:

<converters:LowerCase x:Key="toLowerConverter"/>

<ControlTemplate TargetType="CustomControlYouMade">
   <HeaderedContentControl Header="{Binding RelativeSource={RelativeSource AncestorType={x:Type CustomControlYouMade}}, Path=Header, Converter={StaticResource toLowerConverter}}" />
</ControlTemplate>

And the converter logic:

public sealed class LowerCase : IValueConverter {
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture) {
        var str = value as string;
        return string.IsNullOrEmpty(str) ? string.Empty : str.ToLower();
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) {}
}

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For advanced typography options like ligatures, subscript/superscript, swashes, etcetera., you'll need a compatible OpenType font. See this MSDN article to see what's possible.