Question

I am new to development and am receiving the error ‘Expression Expected’ when I attempt to compile the code below. What am I doing wrong?

Public Class Form1      Private Sub btnCompute_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCompute.Click          Dim Occupation As String = CStr(txtOccupation.Text)         Dim Bill As Double = CDbl(txtBill.Text)         Dim Tip As Double = CDbl(txtTip.Text)          lstOutput.Text = Bill * (1 + if (Tip<1,Tip,Tip/100))      End Sub End Class 

Answer 1

I’m guessing the exception is being thrown on on the last line

lstOutput.Text = Bill * (1 + if (Tip<1,Tip,Tip/100)) 

You used ‘if’ which is used in an if…then statement, but i bet you meant iif, which is a function

lstOutput.Text = Bill * (1 + IIf (Tip<1,Tip,Tip/100)) 

just add that one extra ‘i’ and you should be fine

Article explaining the difference between ‘IF’ and ‘IIF()’