如何在Silverlight DatePicker控件中禁用将来的日期

<toolkit:DatePicker x:Name="datePicker" />

public MainPage()
{
    InitializeComponent();

    // 获取当前年份
    int currentYear = DateTime.Now.Year;

    // 设置DatePicker控件的MaxYear属性
    datePicker.MaxYear = currentYear;
}

public MainPage()
{
    InitializeComponent();

    // 获取当前日期
    DateTime currentDate = DateTime.Now.Date;

    // 创建一个新的BlackoutDates集合
    DatePickerBlackoutDates blackoutDates = new DatePickerBlackoutDates();

    // 将当前日期之后的所有日期添加到BlackoutDates集合中
    for (DateTime date = currentDate.AddDays(1); date <= currentDate.AddYears(1); date = date.AddDays(1))
    {
        blackoutDates.Add(new CalendarDateRange(date, date));
    }

    // 将BlackoutDates集合设置为DatePicker控件的BlackoutDates属性
    datePicker.BlackoutDates = blackoutDates;
}