protected void ButtonDelete_Click(object sender, EventArgs e)
{
MortgageLoggerSQL.DeleteAllRows();
}
protected void PopulateData()
{
GridViewHistory.DataSource = MortgageLoggerSQL.GetDataTable();
GridViewHistory.DataBind();
}
protected void Page_Load(object sender, EventArgs e)
{
// If our interest rates are unpopulated
if (DropDownListInterestRate.Items.Count is 0)
{
double[] percents = GeneratePercents();
foreach (double d in percents)
{
DropDownListInterestRate.Items.Add(d.ToString());
}
}
if (IsPostBack)
{
BulletedListProblems.Items.Clear();
double years = 0;
double principal = 0;
double interestrate = 0;
// Try to get the years.
if (RadioButtonListYears.SelectedItem != null)
{
// They've selected an 'other' year.
if (RadioButtonListYears.SelectedItem.Value is "other")
{
try
{
years = Double.Parse(TextBoxYearsOther.Text);
}
catch (FormatException)
{
BulletedListProblems.Items.Add("Years is an invalid number.");
}
}
else // They've selected a year from our radio buttons.
{
try
{
years = Double.Parse(RadioButtonListYears.SelectedItem.Value);
}
catch (FormatException)
{
BulletedListProblems.Items.Add("Years is an invalid number.");
}
}
}
else // They have not selected a radio button.
{
BulletedListProblems.Items.Add("No year selected.");
}
// Try to get the principal.
try
{
principal = Double.Parse(TextBoxPrinciple.Text);
}
catch (FormatException)
{
BulletedListProblems.Items.Add("Principle is an invalid number.");
}
// Try to get the interest rate.
try
{
interestrate = Double.Parse(DropDownListInterestRate.SelectedValue);
}
catch (FormatException)
{
BulletedListProblems.Items.Add("Interest rate is an invalid number.");
}
// If there are no problems
if (BulletedListProblems.Items.Count is 0)
{
double res = MortgageLib.MonthlyPayment(principal, interestrate, years);
// Seconds since UNIX epoch.
int secs = (int)((DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds);
MortgageLoggerSQL.TryCreateTables();
// Log a single mortgage.
MortgageLoggerSQL.Log(new MortgageLogEntry(secs, principal, interestrate, years));
string str = res.ToString("n2");
str = "$" + str;
TextBoxResult.Text = str;
}
else
{
TextBoxResult.Text = null;
}
}
else // Not postback.
{
}
}