Strange deployment problem

[Simon Verona]

I have a strange problem with a Windows Forms application.

It installs and runs fine on my development machine but consistently comes
up with errors on any installed machine.

I get an error about an unhandled exception as the application starts up.

If I go to debugger I get the error showing as :

[thread 0x1220] Unhandled exception generated: (0x04941b54)
<System.NullReferenc
eException>
_className=<null>
_exceptionMethod=<null>
_exceptionMethodString=<null>
_message=(0x04942e38) "Object reference not set to an instance of an
object."
_innerException=<null>
_helpURL=<null>
_stackTrace=(0x04942eb4) array with dims=[60]
_stackTraceString=<null>
_remoteStackTraceString=<null>
_remoteStackIndex=0x00000000
_HResult=0x80004003
_source=<null>
_xptrs=0x0012ed28
_xcode=0xc0000005
I've attempted to trace the problem in my code by inserted msgbox lines to
work out where it falls over.

The form is an inherited form (which itself inherits from a standard Windows
Form). It seems to crash as it instantiates a user control on the form.

The line it appears to fall over on is :

Me.DmsTextBox1 = New DMSControls.DmsTextBox

DMSTextBox is my usercontrol. If I put a msgbox before this line I see
it.

The start of the usercontrol reads:

Public Sub New()

MyBase.New()

MsgBox("Start_Input_Box")

'This call is required by the Windows Form Designer.

InitializeComponent()

'Add any initialization after the InitializeComponent() call

End Sub

You never see the msgbox that is at the top of this form....

I'm lost as to what the problem might be!

Anybody any further clues as to what I can do to locate / fix the problem?

The application was developed using VS.Net 2003. The deployed machine is a
Windows 2000 Server, with the .Net framework distributable V1.1 installed.
The project is deployed as an msi built as an install project in VS .net
2003.

Regards

[One Handed Man [ OHM ]]

Hmm,
This is a third party control right ?, I would suggest you
contact the vendors.

Regards - OHM

======================

Simon Verona wrote:

I have a strange problem with a Windows Forms application.

It installs and runs fine on my development machine but consistently
comes up with errors on any installed machine.

I get an error about an unhandled exception as the application starts
up.

If I go to debugger I get the error showing as :

[thread 0x1220] Unhandled exception generated: (0x04941b54)
<System.NullReferenc
eException>
_className=<null>
_exceptionMethod=<null>
_exceptionMethodString=<null>
_message=(0x04942e38) "Object reference not set to an instance of an
object."
_innerException=<null>
_helpURL=<null>
_stackTrace=(0x04942eb4) array with dims=[60]
_stackTraceString=<null>
_remoteStackTraceString=<null>
_remoteStackIndex=0x00000000
_HResult=0x80004003
_source=<null>
_xptrs=0x0012ed28
_xcode=0xc0000005
I've attempted to trace the problem in my code by inserted msgbox
lines to work out where it falls over.

The form is an inherited form (which itself inherits from a standard
Windows Form). It seems to crash as it instantiates a user control
on the form.

The line it appears to fall over on is :

Me.DmsTextBox1 = New DMSControls.DmsTextBox

DMSTextBox is my usercontrol. If I put a msgbox before this line
I see it.

The start of the usercontrol reads:

Public Sub New()

MyBase.New()

MsgBox("Start_Input_Box")

'This call is required by the Windows Form Designer.

InitializeComponent()

'Add any initialization after the InitializeComponent() call

End Sub

You never see the msgbox that is at the top of this form....

I'm lost as to what the problem might be!

Anybody any further clues as to what I can do to locate / fix the
problem?

The application was developed using VS.Net 2003. The deployed
machine is a Windows 2000 Server, with the .Net framework
distributable V1.1 installed. The project is deployed as an msi built
as an install project in VS .net 2003.

Regards

Best Regards - OHMBest Regards - OHM On**********@BTInternet.Com

[Simon Verona]

no not third party... I wrote it... It's just a usercontrol that contains a
text box. It's used to extend the standard textbox control for some custom
databinding etc. It works in other solutions, and runs fine on my
development system in this project.

What I can't see, is why it seems to fall over so early in the control!

It looks from the debug message that it's trying to dimension something, but
can't see what.

Not sure if this helps.

Simon
"One Handed Man [ OHM ]" <te***************************@BTOpenworld.com>
wrote in message news:u4**************@TK2MSFTNGP09.phx.gbl...

Hmm,
This is a third party control right ?, I would suggest you
contact the vendors.

Regards - OHM

======================

Simon Verona wrote:

I have a strange problem with a Windows Forms application.

It installs and runs fine on my development machine but consistently
comes up with errors on any installed machine.

I get an error about an unhandled exception as the application starts
up.

If I go to debugger I get the error showing as :

[thread 0x1220] Unhandled exception generated: (0x04941b54)
<System.NullReferenc
eException>
_className=<null>
_exceptionMethod=<null>
_exceptionMethodString=<null>
_message=(0x04942e38) "Object reference not set to an instance of an
object."
_innerException=<null>
_helpURL=<null>
_stackTrace=(0x04942eb4) array with dims=[60]
_stackTraceString=<null>
_remoteStackTraceString=<null>
_remoteStackIndex=0x00000000
_HResult=0x80004003
_source=<null>
_xptrs=0x0012ed28
_xcode=0xc0000005
I've attempted to trace the problem in my code by inserted msgbox
lines to work out where it falls over.

The form is an inherited form (which itself inherits from a standard
Windows Form). It seems to crash as it instantiates a user control
on the form.

The line it appears to fall over on is :

Me.DmsTextBox1 = New DMSControls.DmsTextBox

DMSTextBox is my usercontrol. If I put a msgbox before this line
I see it.

The start of the usercontrol reads:

Public Sub New()

MyBase.New()

MsgBox("Start_Input_Box")

'This call is required by the Windows Form Designer.

InitializeComponent()

'Add any initialization after the InitializeComponent() call

End Sub

You never see the msgbox that is at the top of this form....

I'm lost as to what the problem might be!

Anybody any further clues as to what I can do to locate / fix the
problem?

The application was developed using VS.Net 2003. The deployed
machine is a Windows 2000 Server, with the .Net framework
distributable V1.1 installed. The project is deployed as an msi built
as an install project in VS .net 2003.

Regards

Best Regards - OHMBest Regards - OHM On**********@BTInternet.Com

[EricJ]

probably not mutch help but anyway it wont hurt

are you sure that the server has al the updates from ms (probably not the
problem but i've had a pc acting up on me becouse of that)

are you sure that the installer isn't forgetting any references (since you
are using custom controls this could be an issue) do you use the user
control somewhere else? dous it work there? have you tried using the control
static (putting it somwhere on the form in designer instaid of using code)

hope it helps a bit
these things can be very hard to find

eric

"Simon Verona" <ne**@aphroditeuk.com> wrote in message
news:%2****************@tk2msftngp13.phx.gbl...

I have a strange problem with a Windows Forms application.

It installs and runs fine on my development machine but consistently comes
up with errors on any installed machine.

I get an error about an unhandled exception as the application starts up.

If I go to debugger I get the error showing as :

[thread 0x1220] Unhandled exception generated: (0x04941b54)
<System.NullReferenc
eException>
_className=<null>
_exceptionMethod=<null>
_exceptionMethodString=<null>
_message=(0x04942e38) "Object reference not set to an instance of an
object."
_innerException=<null>
_helpURL=<null>
_stackTrace=(0x04942eb4) array with dims=[60]
_stackTraceString=<null>
_remoteStackTraceString=<null>
_remoteStackIndex=0x00000000
_HResult=0x80004003
_source=<null>
_xptrs=0x0012ed28
_xcode=0xc0000005
I've attempted to trace the problem in my code by inserted msgbox lines to
work out where it falls over.

The form is an inherited form (which itself inherits from a standard Windows Form). It seems to crash as it instantiates a user control on the form.

The line it appears to fall over on is :

Me.DmsTextBox1 = New DMSControls.DmsTextBox

DMSTextBox is my usercontrol. If I put a msgbox before this line I see
it.

The start of the usercontrol reads:

Public Sub New()

MyBase.New()

MsgBox("Start_Input_Box")

'This call is required by the Windows Form Designer.

InitializeComponent()

'Add any initialization after the InitializeComponent() call

End Sub

You never see the msgbox that is at the top of this form....

I'm lost as to what the problem might be!

Anybody any further clues as to what I can do to locate / fix the problem?

The application was developed using VS.Net 2003. The deployed machine is a Windows 2000 Server, with the .Net framework distributable V1.1 installed.
The project is deployed as an msi built as an install project in VS .net
2003.

Regards

[Armin Zingler]

"Simon Verona" <ne**@aphroditeuk.com> schrieb

Public Sub New()

MyBase.New()

MsgBox("Start_Input_Box")

'This call is required by the Windows Form Designer.

InitializeComponent()

'Add any initialization after the InitializeComponent() call

End Sub

You never see the msgbox that is at the top of this form....

What if you put the msgbox *before* MyBase.New? Means:
Public Sub New()

MsgBox("MyBase.New()")

MyBase.New()

MsgBox("InitializeComponent")

'This call is required by the Windows Form Designer.

InitializeComponent()

'Add any initialization after the InitializeComponent() call

End Sub
--
Armin

http://www.plig.net/nnq/nquote.html
http://www.netmeister.org/news/learn2quote.html

[Armin Zingler]

"Simon Verona" <ne**@aphroditeuk.com> schrieb

It won't then compile.. says mybase.new must be the first line of
the subroutine....

Ahhh...yes ..ok.. I should have tested this. (sorry!)
--
Armin