WPF Radiobutton (two) (binding to boolean value)

Question

I have a property of type boolean presented with checkbox.

I want to change that to two radiobuttons that bind on the same property presenting the value true/false.<

Answer 1

Little upgrade of RandomEngy's answer if you want your bool nullable (for no default value/Checked Radiobutton)

public class BoolRadioConverter : IValueConverter
{
    public bool Inverse { get; set; }

    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        bool? boolValue = (bool?)value;

        return this.Inverse ? !boolValue : boolValue;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        bool? boolValue = (bool?)value;

        if (boolValue != null && (bool)!boolValue)
        {
            // We only care when the user clicks a radio button to select it.
            return null;
        }

        return !this.Inverse;
    }
}

and the rest is the same as his answer.