public int TransferAmount(string cc, float am, string option)
 {
     try
     {
         using (Bank_AccountsEntities1 ba = new Bank_AccountsEntities1())
         {
             var n = ba.Person_Accounts.Where(i => i.Card_Code == cc).SingleOrDefault();
             switch (option)
             {
                 case "Add":
                     n.Total_Amount = n.Total_Amount + am;
                     break;
                 case "Trans":
                     n.Total_Amount = n.Total_Amount - am;
                     break;
                 default:
                     break;
             }
             ba.SaveChanges();
             return 1;
         }
     }
     catch (Exception)
     {
         return 0;
     }
 }
 public Person_Accounts GetData(string username, string password, string cc)
 {
     using (Bank_AccountsEntities1 ba = new Bank_AccountsEntities1())
     {
         return ba.Person_Accounts.Where(i => i.Username == username).Where(i => i.Password == password).Where(i => i.Card_Code == cc).SingleOrDefault();
     }
 }