private void button3_Click(object sender, EventArgs e)
{
try
{
double principalamount = double.Parse(textBox4_pa.Text);
double numberofyears = double.Parse(textBox5_noy.Text);
double interestrate = double.Parse(textBox6_ir.Text);
CInterest ci = new CInterest();
double result = ci.CompoundInterestFormula();
textBox2_an.Text = result.ToString();
}
catch (Exception)
{
if (textBox2_an.Text == "")
{
MessageBox.Show("Please enter digits in the boxes above!!");
}
}
}
private void button2_Click(object sender, EventArgs e)
{
try
{
double principalamount = double.Parse(textBox1_PrincipalAmount.Text);
double interestrate = double.Parse(textbox_InterestRate.Text);
double numberofyears = double.Parse(Years.Text);
CInterest si = new CInterest();
double result = si.SimpleInterestFormula(principalamount, numberofyears, interestrate);
textBox3_Answer.Text = result.ToString();
}
catch (Exception)
{
if (textBox3_Answer.Text == "")
{
MessageBox.Show("Please enter digits in the boxes above!!");
}
}
}
