private void StartNewDay() { CommonManager manager = new CommonManager(); //First, check if the application starting for first time in the day. if (manager.CheckIfFirstTimeForDay(date.Value)) { ////ask for the starting cash. //double startingCash = (new DayStartCash()).GetStartCash(DateTime.Parse(date.Text)); double startingCash = 0; //mark day start in db manager.MarkDayStart(date.Value, startingCash); } }