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