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ASP.NET Crystal Reports 2008 (FULL 12.0.2000.0)

Posted on 2009-05-07
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Last Modified: 2012-05-06
I have developed a ASP.NET Web Application using the CR.NET 2008 Basic (10.5.3700.0). runtime.  I am ready to use the full version of Crystal Reports 2008 so I installed the Developers Edition.  

I have upgraded the reports/solution using the automatic tool see attached screenshot: Crystal_Reports_2008_Solution_Conversion.png.   The Business Objects Visual Studio Integration Manager tool shows that I am using the full runtime (12.0.2000.0).

The application compiles and runs fine.   However when I load a report a into the CrystalReportViewer the first time I receive the error:

Value cannot be null.  Parameter name: inputString

The second time the report viewer is empty (blank) no error.  I have scoured my code and the report itself and I can not find the parameter/variable inputString.   Now development started in 2007 in Visual Studio 2005 with VB.NET and over the years has been migrated to C# in Visual Studio 2008.   The reports however were always targetting the CR.NET Basic runtime.  I need the full version to utilize the royalty free Developer's Advantage license from SAP.

I am including screenshots to illustrate the report working and not working.

I can change the assembly references in the web.config from 12.0.2000.0 back to 10.5.3700.0 and the report shows up correctly again.
Visual-Studio-Integration-Manage.png
Working-Report.png
Not-Working-Error.png
Crystal-Reports-2008-Solution-Co.png
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Question by:CyberUnDead
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Expert Comment

by:mlmcc
ID: 24325995
Did you change the applicationto use the CR2008 runtimes?

mlmcc
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Author Comment

by:CyberUnDead
ID: 24326281
mlmmc:

  I don't follow do you mean as references?   I am attaching a screenshot of my project's references which do list 12.0.2000.0.   I did change my setup projects prerequisites to look for/install Crystal Reports 2008 full runtime but this problem is occurring during debug mode on my development PC.
Crystal-Reports-References.png
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by:mlmcc
ID: 24326574
Did you also replace the viewer?

mlmcc
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Author Comment

by:CyberUnDead
ID: 24326757
mlmcc:

   I am including the markup code from the Master Page that hosts the CrystalReportsViewer.  I use a tag prefix so I am including the appropriate lines from the web.config.   The first defines the tag while the second as previously established determines the assembly reference.
// ASPX Page Markup

<crystalReports:CrystalReportViewer ID="crystalViewer" runat="server" AutoDataBind="true"/>
 

// Web.Config

<add tagPrefix="crystalReports" namespace="CrystalDecisions.Web" assembly="CrystalDecisions.Web"/>
 

<add assembly="CrystalDecisions.Web, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>

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by:mlmcc
ID: 24327036
Looks good but I am not a web/ASP person.

If it is getting the viewer from the VS2008 assembly, that is based on CR10 and doesn't support optional parameters.

mlmcc
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Accepted Solution

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CyberUnDead earned 0 total points
ID: 24329918
Solved:

Apparently in Crystal Reports 2008 (12.0.2000.0) one has to explicitly declare the content body the report to be visible.   Wow.

[CrystalReportViewer].DisplayPage = true;

Where [CrystalReportViewer] is the name of your viewer object.

Thanks for all your attempts mlmcc.  It was a viewer problem in such my original code did not use this property and again apparently it is set to false as a default.  So it gave the impression my report was blank in reality it was hidden.
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Expert Comment

by:mlmcc
ID: 24331303
I have used CR2008 with an application so I wasn't aware of that.

Click the DELETE QUESTION link in the question body and follow the prompts to close this question using your last comment as the answer.

mlmcc
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