public void CreatePawn()
{
double financeCharge = CreateFinanceCharge();
double principal = Convert.ToDouble(PrincipalTextBox.Text);
double totalAmount = principal + financeCharge;
string transactionID = poNumber;
string customerID = GetSelectedCustomerID();
string productDesc = ProductDescTextBox.Text;
string principalAmount = totalAmount.ToString();
string pawnDate = GetDate();
string status = "Open";
string defaultedDate = "1/1/1900";
string defaultDate = GetDefaultDate();
DataManager dataManager = new DataManager(connectionString);
dataManager.InsertPawn(transactionID,customerID,productDesc,principalAmount,
pawnDate,status,defaultedDate,defaultDate);
}