I have an application that uses the Crystal Windows forms
viewer to display reports. The reports are populated
with data from a strongly-typed dataset. The app runs
fine on the development machine, but not on client
machines.

The form with the report viewer displays properly. Then
I click a button to display a report in the viewer. I
have figured out that the viewer's ReportSource property
is set successfully to point to a valid dataset. But
when the viewer starts to render the report, *the
application exits.*

I have spent hours with Crystal tech support on this, so
I thought I'd check here to see if anyone has encountered
anything similar.

FWIW, there seems to be a low level error occurring of
the "object reference not set" type just before the app
exits. Also, I am using all the latest merge modules and
valid licensing info.

Thanks for any help,

Matt Gould

Hi Matt...

>with data from a strongly-typed dataset. The app runs
>fine on the development machine, but not on client
>machines.

From this I would have to think that the problem is that some of the components required by Crystal are not being installed. Being as Crystal is not a microsoft product and I have
had limited exposure to it personally I do not know what may be involved in installing it to client machines. That might be what you need to discuss with Crystal Support. One other
thing to check is IF you have any virus scanning software running on those clients then Disable it before installing your app. While I know of no specific problems with Crystal and
Antivirus softare I DO know of other software install problems that have been caused by some of the antivirus solutions out there blocking key files from being installed.

Want to know more? Check out the MSDN Library at http://msdn.microsoft.com or the Microsoft Knowledge Base at http://support.microsoft.com

Scot Rose, MCSD
Microsoft Visual Basic Developer Support
Email : (E-Mail Removed) <Remove word online. from address>

This posting is provided “AS IS”, with no warranties, and confers no rights.




--------------------
>Content-Class: urn:content-classes:message
>From: "Matt Gould" <(E-Mail Removed)>
>Sender: "Matt Gould" <(E-Mail Removed)>
>Subject: Crystal kills .NET app
>Date: Fri, 22 Aug 2003 13:39:47 -0700
>Lines: 25
>Message-ID: <029f01c368ed$86c8f2c0$(E-Mail Removed)>
>MIME-Version: 1.0
>Content-Type: text/plain;
> charset="iso-8859-1"
>Content-Transfer-Encoding: 7bit
>X-Newsreader: Microsoft CDO for Windows 2000
>Thread-Index: AcNo7YbIrKxTf+d9SMuCEWhAoQsTiQ==
>X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300
>Newsgroups: microsoft.public.dotnet.framework.windowsforms
>Path: cpmsftngxa06.phx.gbl
>Xref: cpmsftngxa06.phx.gbl microsoft.public.dotnet.framework.windowsforms:50791
>NNTP-Posting-Host: TK2MSFTNGXA13 10.40.1.165
>X-Tomcat-NG: microsoft.public.dotnet.framework.windowsforms
>
>I have an application that uses the Crystal Windows forms
>viewer to display reports. The reports are populated
>with data from a strongly-typed dataset. The app runs
>fine on the development machine, but not on client
>machines.
>
>The form with the report viewer displays properly. Then
>I click a button to display a report in the viewer. I
>have figured out that the viewer's ReportSource property
>is set successfully to point to a valid dataset. But
>when the viewer starts to render the report, *the
>application exits.*
>
>I have spent hours with Crystal tech support on this, so
>I thought I'd check here to see if anyone has encountered
>anything similar.
>
>FWIW, there seems to be a low level error occurring of
>the "object reference not set" type just before the app
>exits. Also, I am using all the latest merge modules and
>valid licensing info.
>
>Thanks for any help,
>
>Matt Gould
>