Beginning Microsoft VB 2010

[Tony1997]

Hello everyone.
Im now reading the VB 2010 beginner book by Thearon Wills and Bryan Newsome. im 13 years old and im currently stuck. i tried to code the variable program yesterday but something went wrong. is it because i use Visual Studio 2010 Express? every code is exactly the same like in the book. This is at Page 40. help please!

Public Class Form1

    Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
        Dim intNumber As Integer
        intNumber = 27
        intNumber = intNumber + 1
        MessageBox.Show("Value of intNumber + 1 = " & intNumber.ToString, _ "Variables")

    End Sub
End Class

Thanks

[si_the_geek]

Welcome to VBForums

Thread moved from 'Office Development' forum to 'VB.Net' (VB2002 and later) forum.

[Tony1997]

Thanks

im so sorry for posting in wrong section too ^^

[bergerkiller]

Not sure, but I believe your messagebox line got a syntax error:

MessageBox.Show("Value of intNumber + 1 = " & intNumber.ToString, _ "Variables")

To:

MessageBox.Show("Value of intNumber + 1 = " & intNumber.ToString, "Variables")

The '_'-sign is used to make code flow over to the next line, like this:

Dim mystring As String = "This string is extremely long so I " & _
"use a '_' character to make it flow over correctly"

Or use the good ol' MsgBox:

MsgBox("Text to display")

Other than that there are no errors to be seen.

[Sitten Spynne]

*Ahh, beaten!*

Could you describe what you mean by "something went wrong"?

The only odd part I see is here:

MessageBox.Show("Value of intNumber + 1 = " & intNumber.ToString, _ "Variables")

See that "_" character? That's called the "line continuation operator". Since VB .NET doesn't use a character like ";" to mean "end of line", the syntax doesn't provide an immediate way for you to separate an expression over multiple lines of code. If you end a line with "_", that's a hint to the compiler that you have split an expression:

MessageBox.Show("Value of intNumber + 1 = " & intNumber.ToString(), _
                "Variables")

In VB 2010, you don't *always* have to use the line continuation operator when splitting an expression, but there are still scenarios where it's needed.

Anyway, my guess is if you put the "_" on a line, you are not allowed to place any more code on that line. Either start a new line after it or delete the "_" from your code.

If that's not the problem, please include a detailed explanation of what you expect to happen and what's actually happening; make sure to include this in all posts.

[bergerkiller]

*Ahh, beaten!*

Haha, happened to be a few times too.