private void LogData()
{
string outputtext = $"With a principal of ${_prinicipal}, duration of {_years} years and an interest rate of {_rate}%, the monthly loan payment amount is ${_monthlypayment}";
IIOHelper ioHelper = new DatabaseIOHelper();
ioHelper.AddMortgage(outputtext, _prinicipal, _rate, _years, _monthlypayment);
}
protected void btn_clear_Click(object sender, EventArgs e)
{
IIOHelper ioHelper = new DatabaseIOHelper();
ioHelper.ClearMortgages();
}