How to automatically scale font size for a group of controls?

Question

I have a few TextBlocks in WPF in a Grid that I would like to scale depending on their available width / height. When I searched for automatically scaling Font size the typi

Answer 1

I think I know the way to go and will leave the rest to you. In this example, I bound the FontSize to the ActualHeight of the TextBlock, using a converter (the converter is below):

    
        
    
    
        
        
    

    
        
        
            
            
            
        
        
        
        
        
    



[ValueConversion(typeof(double), typeof(double))]
class HeightToFontSizeConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        // here you can use the parameter that you can give in here via setting , ConverterParameter='something'} or use any nice login with the VisualTreeHelper to make a better return value, or maybe even just hardcode some max values if you like
        var height = (double)value;
        return .65 * height;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}