public void CheckMaxPaymentDate()
{
DataManager dataManager = new DataManager(connectionString);
if (paymentTransactionIdList.Count >= 1)
{
foreach (string pawnID in paymentTransactionIdList)
{
DateTime chargeDate = dataManager.GetMaxPaymentDate(pawnID);
DateTime today = DateTime.Today;
TimeSpan diffDays = today - chargeDate;
double loanDays = diffDays.TotalDays;
if (loanDays >= 31)
{
ApplyPaymentCharge(pawnID);
}
}
}
}
