Newbie - Error with command line vbc but not with vs.net?

  • Thread starter Thread starter Zenobia
  • Start date Start date
Z

Zenobia

What is wrong with this snippet?

It is a modification from Stephen Walther's ASP.NET Unleashed,
1e, page 734-5:

+++++ +++++ +++++ +++++ +++++
Public Class ProductsHandler
... some code ...

objContext.Response.Write ("<html>" & vbCrLf & "<title>")

... some more code ...

ReadOnly Property vbCrLf() As String
Get
Return Chr(13) & Chr(10)
End Get
End Property

... some more code ...

End Class

+++++ +++++ +++++ +++++ +++++

(a) When I rebuild my dll using Visual Studio 2003 I get NO
errors:

Rebuild All: 1 succeeded, 0 failed, 0 skipped

(b) When I build using this command line:

vbc.exe /t:library
/r:System.dll,System.Web.dll,System.Data.dll ProductsHandler.vb

I get an error:

ProductsHandler.vb(44) : error BC30451: Name 'Chr' is not
declared.

+++++ +++++ +++++ +++++ +++++

Why is the error picked up by the command line but not by
VS.NET?

Can someone recommend a good book on VB.NET for those used to
using VBScript at lot and VB6 a little? Ideally the book should
also cover VS.NET
 
On Sat, 26 Jun 2004 05:49:00 +0100, Zenobia

It still doesn't work.

What additional library dll do I need to specify as a command
line switch to get either vbNewLine or ControlChars.NewLine to
work and how can I find this information for myself (in future)?

More details are bottom posted.
What is wrong with this snippet?

It is a modification from Stephen Walther's ASP.NET Unleashed,
1e, page 734-5:

+++++ +++++ +++++ +++++ +++++
Public Class ProductsHandler
... some code ...

objContext.Response.Write ("<html>" & vbCrLf & "<title>")

... some more code ...

ReadOnly Property vbCrLf() As String
Get
Return Chr(13) & Chr(10)
End Get
End Property

... some more code ...

End Class

+++++ +++++ +++++ +++++ +++++

(a) When I rebuild my dll using Visual Studio 2003 I get NO
errors:

Rebuild All: 1 succeeded, 0 failed, 0 skipped

(b) When I build using this command line:

vbc.exe /t:library
/r:System.dll,System.Web.dll,System.Data.dll ProductsHandler.vb

I get an error:

ProductsHandler.vb(44) : error BC30451: Name 'Chr' is not
declared.

+++++ +++++ +++++ +++++ +++++

Why is the error picked up by the command line but not by
VS.NET?

Can someone recommend a good book on VB.NET for those used to
using VBScript at lot and VB6 a little? Ideally the book should
also cover VS.NET
Click to expand...

I included the line:

Imports System.Char

at the top before my class declaration and changed the property
to:

ReadOnly Property vbCrLf() As String
Get
Return ControlChars.NewLine
End Get
End Property

or alternatively to:

ReadOnly Property vbCrLf() As String
Get
Return vbNewLine
End Get
End Property

The command line compiler still fails in the same place with:

error BC30451: Name 'ControlChars' is not declared.

or

error BC30451: Name 'vbNewLine' is not declared.

Either of these 2 techniques work with VS.NET but not with the
command line.

This is the command line I'm using:

vbc.exe /t:library /r:System.dll,System.Web.dll,System.Data.dll
ProductsHandler.vb

This is where it's located:

C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\

This is the version of the command line compiler:

Microsoft (R) Visual Basic .NET Compiler version 7.10.3052.4
for Microsoft (R) .NET Framework version 1.1.4322.573

Visual Studio version is:
Microsoft Development Environment 2003, version: 7.1.3088
Microsoft .NET Framework, version: 1.1.4322

Using the vbNewLine and leaving out:

Imports System.Char

works with VS.NET but still gives the same error with the
command line.
 
What is wrong with this snippet?

It is a modification from Stephen Walther's ASP.NET Unleashed,
1e, page 734-5:

+++++ +++++ +++++ +++++ +++++
Public Class ProductsHandler
... some code ...

objContext.Response.Write ("<html>" & vbCrLf & "<title>")

... some more code ...

ReadOnly Property vbCrLf() As String
Get
Return Chr(13) & Chr(10)
End Get
End Property

... some more code ...

End Class

+++++ +++++ +++++ +++++ +++++

(a) When I rebuild my dll using Visual Studio 2003 I get NO
errors:

Rebuild All: 1 succeeded, 0 failed, 0 skipped

(b) When I build using this command line:

vbc.exe /t:library
/r:System.dll,System.Web.dll,System.Data.dll ProductsHandler.vb

I get an error:

ProductsHandler.vb(44) : error BC30451: Name 'Chr' is not
declared.

+++++ +++++ +++++ +++++ +++++

Why is the error picked up by the command line but not by
VS.NET?

Can someone recommend a good book on VB.NET for those used to
using VBScript at lot and VB6 a little? Ideally the book should
also cover VS.NET
Click to expand...

try adding microsoft.visualbasic.dll to your command line (in the
references list).
 
On Sat, 26 Jun 2004 05:49:00 +0100, Zenobia

It still doesn't work.

What additional library dll do I need to specify as a command
line switch to get either vbNewLine or ControlChars.NewLine to
work and how can I find this information for myself (in future)?

More details are bottom posted.


I included the line:

Imports System.Char

at the top before my class declaration and changed the property
to:

ReadOnly Property vbCrLf() As String
Get
Return ControlChars.NewLine
End Get
End Property

or alternatively to:

ReadOnly Property vbCrLf() As String
Get
Return vbNewLine
End Get
End Property

The command line compiler still fails in the same place with:

error BC30451: Name 'ControlChars' is not declared.

or

error BC30451: Name 'vbNewLine' is not declared.

Either of these 2 techniques work with VS.NET but not with the
command line.

This is the command line I'm using:

vbc.exe /t:library /r:System.dll,System.Web.dll,System.Data.dll
ProductsHandler.vb

This is where it's located:

C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\

This is the version of the command line compiler:

Microsoft (R) Visual Basic .NET Compiler version 7.10.3052.4
for Microsoft (R) .NET Framework version 1.1.4322.573

Visual Studio version is:
Microsoft Development Environment 2003, version: 7.1.3088
Microsoft .NET Framework, version: 1.1.4322

Using the vbNewLine and leaving out:

Imports System.Char

works with VS.NET but still gives the same error with the
command line.
Click to expand...

vbCrLf is already a constant defined in the vb.net runtime... It's
possible that this is confusing the compiler, but it is hard to tell
without seeing the rest of the code.
 
try adding microsoft.visualbasic.dll to your command line (in the
references list).
Click to expand...

Thank you Tom, that worked.

added:
Imports Microsoft.VisualBasic

and changed the command line to:
vbc.exe /t:library
/r:Microsoft.VisualBasic.dll,System.dll,System.Web.dll,System.Data.dll
ProductsHandler.vb

removed the vbCrLf property and replaced vbCrLf with vbNewLine
throughout. Presumably I could have kept vbCrLf.
 
Back
Top