private void OnAppointmentItemDragInfo(object sender, DragDropEventArgs e)
{
if (e.Options.Status == DragStatus.DragCancel)
{
TimeSlotItemsControl.ChangeAllDraggedItemsOpacity(this);
if (this.ParentItemsControl != null && this.ParentItemsControl.TimeSlotItemsControl != null)
{
this.ParentItemsControl.TimeSlotItemsControl.ClearAllItemsIsDropPossibleProperty();
}
}
else if (e.Options.Status == DragStatus.DragInProgress)
{
if (Keyboard.Modifiers != ModifierKeys.Control)
{
var draggedAppointmentItems = from app in this.ParentItemsControl.AppointmentItems
where app != null && app.AppointmentSlot.Occurrence.Appointment == this.AppointmentSlot.Occurrence.Appointment
select app;
foreach (var app in draggedAppointmentItems)
{
app.Opacity = 0;
}
}
}
}
