private void InitializeCalender(PackTracker.History History)
{
Entity.Pack FirstPack = History.First();
dp_DatePicker.DisplayDateStart = FirstPack.Time;
dp_DatePicker.SelectedDate = History.Last().Time.Date;
IEnumerable <DateTime> HistoryDates = History.Select(x => x.Time.Date).Distinct();
for (DateTime i = FirstPack.Time.Date; i.Date < DateTime.Today; i = i.AddDays(1))
{
if (!HistoryDates.Contains(i))
{
dp_DatePicker.BlackoutDates.Add(new CalendarDateRange(i));
}
}
}
public HistoryDatePicker(PackTracker.History History)
{
InitializeComponent();
_history = History;
if (History.Count > 0)
{
InitializeCalender(History);
}
else
{
dp_DatePicker.DisplayDateStart = DateTime.Today;
History.CollectionChanged += InitializeCalender;
}
dp_DatePicker.SelectedDateChanged += (sender, e) => OnPropertyChanged("AssociatedPack");
History.CollectionChanged += (sender, e) => {
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (var Pack in e.NewItems)
{
if (Pack is Entity.Pack)
{
Entity.Pack NewPack = (Entity.Pack)Pack;
if (_associatedPacks.ContainsKey(NewPack.Time.Date))
{
_associatedPacks[NewPack.Time.Date].Add(NewPack);
}
if (dp_DatePicker.SelectedDate != NewPack.Time.Date)
{
dp_DatePicker.SelectedDate = NewPack.Time.Date;
}
}
}
}
};
dp_DatePicker.MouseWheel += (sender, e) => {
if (dp_DatePicker.SelectedDate == null)
{
return;
}
int day = e.Delta < 0 ? -1 : 1;
DateTime Date = (DateTime)dp_DatePicker.SelectedDate;
DateTime First = History.First().Time.Date;
DateTime Last = History.Last().Time.Date;
do
{
Date = Date.AddDays(day);
if (day == 1)
{
if (Date > Last)
{
return;
}
if (Date < First)
{
dp_DatePicker.SelectedDate = First;
return;
}
}
else
{
if (Date < First)
{
return;
}
if (Date > Last)
{
dp_DatePicker.SelectedDate = Last;
return;
}
}
} while(dp_DatePicker.BlackoutDates.Contains(Date));
dp_DatePicker.SelectedDate = Date;
};
}
