Newbie VB Question

[Paul Hadfield]

All,

Sorry if this is a really silly question, but.....

Is it possible to set a return code for a DOS environment somewhere for a
VB.NET app?

When writing .BAT files for Windows 2000 I often need to use the ERRORLEVEL
value to determine if a program was successful or not. How can I
programmatically set this value from within VB.NET when my app exits?

Cheers,
Paul.

 

[Herfried K. Wagner [MVP]]

Is it possible to set a return code for a DOS environment somewhere for a
VB.NET app?

'Environment.ExitCode = <value>', 'Environment.Exit(<exit code>)', or a
'Function Main' that has a return value of type 'Integer'.

 

[Paul Hadfield]

Hi,

Neither of these seem to work. When the compiled .exe is run from a Windows
XP command prompt, neither make any difference to the %ErrorLevel% - it
remains set to 0.


Sub Main()
Environment.ExitCode = 999
End Sub


Function Main() As Integer
Return 999
End Function


Also, each time I run the program from within the DDE it shows:

The program '[3728] Test.exe' has exited with code 0 (0x0).

I must be missing something simple. Any ideas?


Cheers,
Paul.

 

[Paul Hadfield]

Sorry - I meant IDE (not DDE)

Hi,

Neither of these seem to work. When the compiled .exe is run from a
Windows XP command prompt, neither make any difference to the
%ErrorLevel% - it remains set to 0.


Sub Main()
Environment.ExitCode = 999
End Sub


Function Main() As Integer
Return 999
End Function


Also, each time I run the program from within the DDE it shows:

The program '[3728] Test.exe' has exited with code 0 (0x0).

I must be missing something simple. Any ideas?


Cheers,
Paul.

 

[Herfried K. Wagner [MVP]]

Paul,

Neither of these seem to work. When the compiled .exe is run from a
Windows XP command prompt, neither make any difference to the
%ErrorLevel% - it remains set to 0.


Sub Main()
Environment.ExitCode = 999
End Sub


Function Main() As Integer
Return 999
End Function

Are you sure you selected 'Sub Main' as startup object in the project
properties?

Also, each time I run the program from within the DDE it shows:

The program '[3728] Test.exe' has exited with code 0 (0x0).

The IDE will report incorrect values, that's a known "bug".

 

[Paul Hadfield]

My problem appeared to be becuase I had the project output type set to
Windows Application instead of Console Applicaiton.

Cheers for your input.

Paul.

Paul,

Neither of these seem to work. When the compiled .exe is run from a
Windows XP command prompt, neither make any difference to the
%ErrorLevel% - it remains set to 0.


Sub Main()
Environment.ExitCode = 999
End Sub


Function Main() As Integer
Return 999
End Function

Are you sure you selected 'Sub Main' as startup object in the project
properties?

Also, each time I run the program from within the DDE it shows:

The program '[3728] Test.exe' has exited with code 0 (0x0).

The IDE will report incorrect values, that's a known "bug".