MedicalService-Converters.cs

public class SelectedToTextColorConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return bool.TryParse(value?.ToString(), out var selected) && selected
            ? Color.FromArgb("#F4FCFF")
            : Color.FromArgb("#777777");
    }

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

public class SelectedToBackgroundColorConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return bool.TryParse(value?.ToString(), out var selected) && selected
            ? Color.FromArgb("#6073E7")
            : Colors.Transparent;
    }

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

public class SelectedAnswerToTextColorConverter : IValueConverter
{
    public Answer RequiredAnswer { get; set; }

    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return Answer.TryParse(typeof(Answer), value?.ToString(), out var answer)
            && Answer.TryParse(typeof(Answer), parameter?.ToString(), out var requiredAnswer)
            && (Answer)answer == (Answer)requiredAnswer
            ? Color.FromArgb("#F4FCFF")
            : Color.FromArgb("#777777");
    }

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

public class SelectedAnswerToBackgroundColorConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return Answer.TryParse(typeof(Answer), value?.ToString(), out var answer)
            && Answer.TryParse(typeof(Answer), parameter?.ToString(), out var requiredAnswer)
            && (Answer)answer == (Answer)requiredAnswer
            ? Color.FromArgb("#6073E7")
            : Colors.Transparent;
    }

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