private static void SelectedDateTimeChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CustomDateTimePicker host = d as CustomDateTimePicker;
if (e.NewValue is DateTime dt)
{
host.SelectedDate = dt.Date;
host.SelectedTime = dt.TimeOfDay;
}
}
/// <summary>
/// 控件的单个时间参数被修改时触发（时、分、秒）
/// </summary>
private static void TimeParamChangedCb(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CustomDateTimePicker host = d as CustomDateTimePicker;
if (host._IsUpdatingTime)
{
return;
}
//设置控件的时间属性
host.SelectedTime = new TimeSpan(host.Hour, host.Minute, host.Second);
}
//时间值变化
private static void SelectedTimeChangedCb(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CustomDateTimePicker host = (CustomDateTimePicker)d;
TimeSpan ts = (TimeSpan)e.NewValue;
host._IsUpdatingTime = true;
host.Hour = ts.Hours;
host.Minute = ts.Minutes;
host.Second = ts.Seconds;
host._IsUpdatingTime = false;
host.UpdateSelectedDateTime();
}
//日期值变化
private static void SelectedDateChangedCb(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CustomDateTimePicker host = (CustomDateTimePicker)d;
DateTime dt = (DateTime)e.NewValue;
host._IsUpdatingDate = true;
host.Year = dt.Year;
host.Month = dt.Month;
host.Day = dt.Day;
host._IsUpdatingDate = false;
host.UpdateSelectedDateTime();
}
//Update Date when date param updated
/// <summary>
/// 控件的单个日期参数被修改时触发（年、月、日）
/// </summary>
private static void DateParamChangedCb(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CustomDateTimePicker host = d as CustomDateTimePicker;
if (host._IsUpdatingDate)
{
return;
}
var dayInMonth = DateTime.DaysInMonth(host.Year, host.Month);
//设置控件的日期属性
host.SelectedDate = new DateTime(host.Year, host.Month, Math.Min(host.Day, dayInMonth));
}