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DotNetNuke Forums
 
  Forum  DotNetNuke® Pro...  Reports Module ...  Chart visualizer does not render
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New Post 8/7/2007 1:56 AM
User is offline Gerald
7 posts
10th Ranked


Re: Chart visualizer does not render IE but does in FireFox 

Chart visualizer is not showing on IE but is rendering on Firefox. I have no errors showing but the page takes forever to complete in IE 6. Please help has I do not have the option of using Firefox as this is on an Intranet.
 
New Post 8/9/2007 2:30 AM
User is offline Tito Brasolin
4 posts
10th Ranked


Re: Chart visualizer does not render 
Hello Andrew, I have a similar problem... The error message is (in both FF and IE)
"Invalid Query String, please do not browse to this page manually, use the Reports Module"

I "hacked" ChartImage.ashx a little bit to gather more infos, and it looks like a decryption problem
(UrlUtils.DecryptParameter returns an empty/null string...)
 
New Post 8/10/2007 12:01 AM
User is offline Tito Brasolin
4 posts
10th Ranked


Re: Chart visualizer does not render 
Hello Andrew,
I've investigated a little more, it seems that my chart visualization problems are somehow related to DotNetNuke.Security.Decrypt...

I'm still not 100% sure about that (debugging isn't easy in my production server) but I think stream.FlushFinalBlock raises an exception:

System.Security.Cryptography.CryptographicException: Bad Data. at System.Security.Cryptography.CryptographicException.ThrowCryptogaphicException(Int32 hr) at System.Security.Cryptography.Utils._DecryptData(SafeKeyHandle hKey, Byte[] data, Int32 ib, Int32 cb, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode PaddingMode, Boolean fDone) at System.Security.Cryptography.CryptoAPITransform.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount) at System.Security.Cryptography.CryptoStream.FlushFinalBlock() at DotNetNuke.Modules.Reports.Visualizers.Chart.ChartImage.Decrypt(String strKey, String strData))

(I've copied the Decrypt method directly into ChartImage.ashx)
 
New Post 12/4/2007 9:31 AM
User is offline Andrew Lupton
24 posts
www.lunahost.com
10th Ranked


Re: Chart visualizer does not render 

I get the same 'Invalid Query String' issue when rendering a chart, the graphics are not created and the event log shows:

RawURL: /DesktopModules/Reports/Visualizers/Chart/ChartImage.ashx?q=9Ixqo26IvRXW4BX9tqB3Zh3S%2bFqYHtPacDAEbPiVMicz7GkNVFRXLThS6uSjiR95zJ2qmlNvxLgqW6Q5DIWMvaycNWpRmaB9OfjLpADwtWM%3d
AbsoluteURL: /DesktopModules/Reports/Visualizers/Chart/ChartImage.ashx
AbsoluteURLReferrer: http://winhost.bankofamerica.com/AdminTools/SystemManagement/tabid/67/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 1.0.3705; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 4424809e-8703-401a-afe8-07539d014b68
InnerException: Unhandled Error:
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Modules.Reports.Visualizers.Chart.ChartImage.ProcessRequest
StackTrace:
Message: System.Exception: Unhandled Error: ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Modules.Reports.Visualizers.Chart.ChartImage.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --- End of inner exception stack trace ---
 
New Post 12/4/2007 1:50 PM
User is offline Andrew Nurse
353 posts
8th Ranked






Re: Chart visualizer does not render 

I'll log this as a bug and follow-up on it. I won't be able to get a fix into v5, which is releasing soon, but since the Visualizers can be installed independantly, I may be able to get a fix out soon if I can identify the problem.

Andrew Nurse
DotNetNuke Core Team Member and Reports Module Project Lead
Microsoft Certified Professional Developer
 
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