I need to build a Loan Calculator that uses functions to provide the values, for the text boxes, based on what radio button is clicked. Then i need to use a Sub to report the result with a label.
I think i am started off in the right direction but i have no background in vb so please bear with me.
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim Payment As Double
Dim Nper As Double
Dim LoanIRate As Double
Dim LoanDuration As Integer
Dim LoanAmount As Integer
If rdbmp1.Checked Then
Payment = Pmt(LoanIRate, LoanDuration, -LoanAmount, 0, )
TextBox4.Text = Payment.ToString("#.00")
If rdbamt1.Checked Then
LoanAmount = PV(LoanIRate / 1200, LoanDuration, -Payment)
TextBox1.Text = Payment.ToString("#.00")
If rdbir1.Checked Then
LoanIRate = 1200 * Rate(LoanDuration, Payment - LoanAmount)
TextBox2.Text = Payment.ToString("#.00")
If rdbdl1.Checked Then
LoanDuration = Nper(LoanIRate / 1200, Payment, -LoanAmount)
TextBox3.Text = Payment.ToString("#.00")
At the moment the only calculation that is working for me correctly is the monthly payment, all of the others have build errors.