public override object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null || !(value is int))
{
return(DependencyProperty.UnsetValue);
}
int age = (int)value;
var index = PluralsHelper.GetPluralEnding(age);
return(PluralsHelper.years[index]);
}
/// <summary>
/// Unit of DateOffset with ending for given offset.
/// </summary>
public static string GetUnitString(int?offset, DateUnit unit)
{
if (offset == null)
{
offset = 0;
}
int ending = PluralsHelper.GetPluralEnding(offset.Value);
switch (unit)
{
case DateUnit.Day: return(Plurals.days[ending]);
case DateUnit.Week: return(Plurals.weeks[ending]);
case DateUnit.Month: return(Plurals.months[ending]);
case DateUnit.Year: return(Plurals.years[ending]);
}
throw new ArgumentOutOfRangeException("unit");
}