public void deleteHistory(History history)
{
if (history.ActivityRef != null)
{
history.ActivityRef.HistoriesRef.Remove(history);
}
AllHistoryItems.Remove(history);
db.History.DeleteOnSubmit(history);
db.SubmitChanges();
}
public void CreateHistory(Activity activity, DateTime from, DateTime to)
{
History history = new History {
From = from, To = to
};
activity.HistoriesRef.Add(history);
db.History.InsertOnSubmit(history);
db.SubmitChanges();
AllHistoryItems.Add(history);
}
