Question

<Slider Maximum="{Binding ElementName=flowControl, Path=Items.Count}" />

I need to return a Items.Count – 1 for the slider’s maximum. How do I define this in xaml?

Many Thanks,

Answer 1

I think in this case you have to use a Value Converter.

e.g.

public class MaxCountConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return (int)value - 1;
    }

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

You will probably need to do error handling and stuff and this is just give you a start point.