xamarin forms -将文本绑定到xaml中的标签-我可以去掉文本的末尾吗？

public class TruncateTextConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        string text = (string)value;

        // 去掉末尾的部分
        string truncatedText = text.Substring(0, text.Length - 1);

        return truncatedText;
    }

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

<ContentPage
    ...
    xmlns:local="clr-namespace:YourNamespace">

    <ContentPage.Resources>
        <ResourceDictionary>
            <local:TruncateTextConverter x:Key="TruncateTextConverter" />
        </ResourceDictionary>
    </ContentPage.Resources>

    <Label Text="{Binding YourTextProperty, Converter={StaticResource TruncateTextConverter}}" />

</ContentPage>