What's wrong with the for loop in VB?

Question

I totally don't get it , why i got a Additional information: Bad file name or number when Button1 was clicked in VS2008SP1 ?

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim i As Integer = 0
    Do
        i += 1
        Print(i)

        If i >= 10 Then
            Print "I is above 10"
        ElseIf i >= 20 Then
            Exit Do
        End If
    Loop While (i <= 30)
End Sub

I don't really know VB, but I expect the problem might be with the Print statements - where would you expect that output to go? Do you have to open an output file first? Does the problem happen if you remove the Print statements? Does the problem happen if you remove everything except a Print statement? — Greg Hewgill
– Greg Hewgill, Commented Dec 7, 2011 at 3:35
This appears to be the least ideal loop construct you could have chosen. — ChaosPandion
– ChaosPandion, Commented Dec 7, 2011 at 3:36

KV Prajapati · Accepted Answer · 2011-12-07 03:38:07Z

2

Don't use Print(). Print() function is used to write data into a file. To print number in debug window use Debug.Print() method.

answered Dec 7, 2011 at 3:38

KV Prajapati

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Comments

Tom · Accepted Answer · 2011-12-07 03:39:32Z

0

You're misusing the print function - http://msdn.microsoft.com/en-us/library/9cksc646(v=vs.90).aspx

Are you trying to output to the console or the debug window perhaps?

answered Dec 7, 2011 at 3:39

Tom

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