Help with increments please.

dhru patel,

Query resolved?

Hi dhru,

I have added one line in your btncalculate_Click method and it works fine as you want.

private void btncalculate_Click(object sender, EventArgs e)
        {
            txtresults.Text = "";
            // This is converting all three inputs into double types.
            double loanAmount = Convert.ToDouble(txtloanamt.Text);     // Converting loanamount into double types.
            double rate = Convert.ToDouble(txtrate.Text) / 100;       //  Converts interest rate into double types.
            double numPayments = Convert.ToDouble(txtterm.Text);      //   Converts Loan terms into integer.

            // Calculate monthly payment.
            double payment = loanAmount * (Math.Pow((1 + rate / 12), numPayments) * rate) / (12 * (Math.Pow((1 + rate / 12), numPayments) - 1));

            // show this monthly payment in textbox.
            txtpayment.Text = payment.ToString("C");

            double interestRateMonth;
            double totalPrincipalPaid = 0;

            for (Int16 intMonth = 1; intMonth < 13; intMonth++)
            {
                loanAmount -= totalPrincipalPaid;

                interestRateMonth = (rate / 12) * loanAmount; //Calculates monthly interest
                totalPrincipalPaid = (payment - interestRateMonth);
                txtresults.Text += "Month ";
                txtresults.Text += Convert.ToInt16(intMonth);
                txtresults.Text += "\t";
                txtresults.Text += "Interest: ";
                txtresults.Text += interestRateMonth.ToString("C");
                txtresults.Text += "\t";
                txtresults.Text += "Principal: ";
                txtresults.Text += totalPrincipalPaid.ToString("C");
                txtresults.Text += Environment.NewLine;

            } //close displaying table.
        } // close Submit button calculations