private static void OnDateRangeChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
//DateRangePickerに新しいDateRangeがセットされときによびだされる。
DateRangePicker2 dateRangePicker = (DateRangePicker2)sender;
DateRange oldDateRange = (DateRange)e.OldValue;
DateRange newDateRange = (DateRange)e.NewValue;
if (DateRange.EqualsDateRange(oldDateRange, newDateRange))
{
return;
}
DateUnit fromDate = newDateRange.FromDate;
dateRangePicker.FromYear = fromDate.Year.ToString();
dateRangePicker.FromMonth = fromDate.Month.ToString();
dateRangePicker.FromDay = fromDate.Day.ToString();
DateUnit toDate = newDateRange.ToDate;
dateRangePicker.ToYear = toDate.Year.ToString();
dateRangePicker.ToMonth = toDate.Month.ToString();
dateRangePicker.ToDay = toDate.Day.ToString();
//DateRangePickerの変更を監視しているオブジェクトに変更を通知。
dateRangePicker.OnDateRangeChanged(oldDateRange, newDateRange);
}
private static object CoerceToDay(DependencyObject d, object value)
{
DateRangePicker2 dateRangePicker = (DateRangePicker2)d;
DateRange dateRange = dateRangePicker.DateRange;
return(ToValidDay(dateRange.ToYear, dateRange.ToMonth, value).ToString());
}
private static void OnTextFieldChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e, Action <DateRange, string> action)
{
DateRangePicker2 dateRangePicker = (DateRangePicker2)sender;
DateRange oldDateRange = dateRangePicker.DateRange;
DateRange newDateRange = (DateRange)oldDateRange.Clone();
action(newDateRange, (string)e.NewValue);
dateRangePicker.DateRange = newDateRange;
}
private static void OnToDayChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
DateRangePicker2 dateRangePicker = (DateRangePicker2)sender;
DateRange dateRange = dateRangePicker.DateRange;
Action <DateRange, string> action = (newDateRange, newValue) =>
{
newDateRange.ToDay = ToValidDay(dateRange.ToYear, dateRange.ToMonth, (string)newValue);
};
OnTextFieldChanged(sender, e, action);
}