public IActionResult Create([Bind("Id,Balance,Start_date,End_date,Interest,Exist,UserId")] Loan loan)
{
if (loan.Balance <= 0)
{
ViewData["error"] = "Invaild input";
return(View(loan));
}
//default setting for new checking account
loan.Start_date = DateTime.Today;
loan.End_date = DateTime.Today.AddDays(1);
loan.Exist = true;
//random interest for overdraft
loan.Interest = (decimal)Math.Round((new Random().NextDouble() * (0.9 - 0.1) + 0.1) / 10, 3);
loan.Balance *= (1 + loan.Interest);
DAL.CreateLoan(loan);
return(RedirectToAction(nameof(Index)));
}