A friend asked me for help today about a segment of code that was giving him a headache. After looking at the code I immediately told him the problem. Can you spot the problem too without compiling the VB code? Why is it happening?
Module Program
Sub Main()
Calculate()
End Sub
Private Sub Calculate()
Dim value1 As Integer = 0
'Imagine that the value of value1 has been manipulated on this section
'///--> Insert imaginary code here <---
Dim value2 As Integer = CInt(IIf(value1 <= 0, 100, CalculateValue(value1)))
End Sub
Private Function CalculateValue(ByVal value1 As Integer) As Integer
If (value1 <= 0) Then
Throw New ArgumentOutOfRangeException("Parameter cannot be less than 1!")
Else
Return CInt(100 / value1)
End If
End Function
End Module
Posted
05-25-2007 5:02 PM
by
keithrull