private bool CheckAllOccurrencesDestinationSlots(Occurrence currentOccurrence, Slot currentDestinationSlot, Occurrence editedOccurrence)
{
var currentApp = currentOccurrence.Appointment as Appointment;
var offsetOfTheOccurrence = currentApp.Start - currentOccurrence.Start;
var destSlotOfMasterApp = OffsetSlot(currentDestinationSlot, offsetOfTheOccurrence);
var occurrences = currentApp.GetOccurrences(scheduleView.VisibleRange.Start, scheduleView.VisibleRange.End);
destinationSlot = null;
foreach (var occ in occurrences)
{
var occurrenceDestinationSlot = OffsetSlot(destSlotOfMasterApp, occ.Start - currentApp.Start);
var appsInOccurrenceDestinationSlot = scheduleView.AppointmentsSource
.OfType <IAppointment>()
.Where((IAppointment a) => a != occ.Appointment)
.All((IAppointment a) => !ConflictChecking.AreOverlapping(a, occurrenceDestinationSlot, editedOccurrence));
if (!appsInOccurrenceDestinationSlot)
{
ShowErrorWindow();
return(true);
}
}
return(false);
}
public override bool CanDrop(DragDropState state)
{
var draggedOccurrence = state.Appointment as Occurrence;
return(state.DestinationAppointmentsSource
.OfType <IAppointment>()
.Where((IAppointment a) => !state.DraggedAppointments.Contains(a))
.All((IAppointment a) => state.DestinationSlots.All((Slot s) => !ConflictChecking.AreOverlapping(a, s, draggedOccurrence))));
}