protected void btnCalculate_Click(object sender, EventArgs e)
{
double amount = 0;
bool goodAmount = double.TryParse(txtAmount.Text, out amount);
if (!goodAmount)
{
Response.Write("<script>alert('Please enter a valid amount');</script>");
txtAmount.Text = "";
txtAmount.Focus();
return;
}
double percent = 0;
if (rdbPercentage.SelectedItem.Text != "other")
{
percent = double.Parse(rdbPercentage.SelectedValue.ToString());
}
else
{
bool goodPercent = double.TryParse(txtOther.Text, out percent);
if (!goodPercent)
{
Response.Write("<script>alert('Please enter a valid Percentage');</script>");
txtAmount.Text = "";
txtAmount.Focus();
return;
}
}
TipCalculator Tip = new TipCalculator(amount, percent);
lblTip.Text = Tip.CalculateTip().ToString("$##0.##");
lblTotal.Text = Tip.CalculateTotal().ToString("$##0.##");
}
public void TestTotalCalcuation()
{
double total = tc.CalculateTotal();
Assert.AreEqual(129.5, total);
}