protected void btnSubtract_Click(object sender, EventArgs e)
{
try
{
CalculatorClass calc = new CalculatorClass();
calc.Num1 = double.Parse(txbNum1.Text);
calc.Num2 = double.Parse(txbNum2.Text);
lblAnswer.Text = calc.Difference.ToString();
}
catch (FormatException)
{
lblAnswer.Text = "Please enter numbers only!";
}
}
protected void btnMultiply_Click(object sender, EventArgs e)
{
try
{
CalculatorClass calc = new CalculatorClass();
calc.Num1 = double.Parse(txbNum1.Text);
calc.Num2 = double.Parse(txbNum2.Text);
lblAnswer.Text = calc.Product.ToString();
}
catch (FormatException fex)
{
lblAnswer.Text = "Please enter numbers only!";
}
}
protected void btnDivide_Click(object sender, EventArgs e)
{
try
{
CalculatorClass calc = new CalculatorClass();
calc.Num1 = double.Parse(txbNum1.Text);
calc.Num2 = double.Parse(txbNum2.Text);
if (calc.Quotient.ToString() == "NaN")
lblAnswer.Text = "Not a number.";
else if (calc.Quotient.ToString() == "Infinity")
lblAnswer.Text = "You divided a number by zero!";
else
lblAnswer.Text = calc.Quotient.ToString();
}
catch (FormatException)
{
lblAnswer.Text = "Please enter numbers only!";
}
}