public void AddOrder(Order o)
{
List <Branch> branchH = (dal.GetListBranch().Where(i => i.BranchCode == o.Branch)).ToList <Branch>();
if (branchH.Count() != 0)
{
if (branchH[0].HechsherBranch > o.OrderHechsher)
{
throw new Exception("the order hechsher is not appropriate to the branch");
}
}
if (o.CreditCard.Length != 8 && o.CreditCard.Length != 16)
{
throw new Exception("the digits number is wrong! ");
}
dal.AddOrder(o);
}