inabox/InABox.Mobile/InABox.Mobile.Shared/Converters/TimeSpanToStringConverter.cs

using System;
using System.Globalization;
using Xamarin.Forms;

namespace InABox.Mobile
{
    public class FormatConverter : IValueConverter
    {
        public String Format { get; set; }

        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return String.IsNullOrWhiteSpace(Format)
                ? value
                : String.Format($"{{0:{Format}}}", value);
        }

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