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HomeHomeDNN Open Source...DNN Open Source...Module ForumsModule ForumsReportsReportsReports 05.00:Reports 05.00:'Object reference not set to an instance of an object' when using visualizer
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2/21/2008 3:39 AM
 
Stephan Henn

Joined: 1/15/2007
Posts: 59

Reports 05.00:'Object reference not set to an instance of an object' when using visualizer

DNN 04.08.00
Reports 05.00.00
ZedGraph 5.1.1.428
DotNetNuke Reports Module - Chart Visualizer 01.02.00

Hi, when I try to use the ChartVizualiser (ZedGraph) I get the following error (error msg is in german):

AssemblyVersion: 04.08.00
PortalID: 0
PortalName: xxx
UserID: 1
UserName: host
ActiveTabID: 107
ActiveTabName: Statistiken
RawURL: /ShopAdmin/Statistiken/tabid/107/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: 
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 3c02eb58-b908-4fc0-9bfb-1161fa7c2506
InnerException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
FileName: 
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Modules.Reports.Visualizers.Chart.ChartImageManager.RenderImage
StackTrace: 
Message: DotNetNuke.Services.Exceptions.PageLoadException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. ---> System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. bei DotNetNuke.Modules.Reports.Visualizers.Chart.ChartImageManager.RenderImage(ReportInfo Report, DataTable ReportResults, String ImagePath, ExtensionContext ExtensionContext) bei DotNetNuke.Modules.Reports.Visualizers.Chart.Visualizer.Page_Load(Object sender, EventArgs e) bei System.Web.UI.Control.OnLoad(EventArgs e) bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Control.LoadRecursive() bei System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- Ende der internen Ausnahmestapelüberwachung ---

I use the follwing SQL Query, which works fine with table layout and returned 42 records the day I tested it:

select 'Datum' = convert(varchar,DateTime,102),
'Seitenaufrufe' = count(*),
'Besucher' = count(distinct dbo.SiteLog.UserHostAddress),
'angemeldete Besucher' = count(distinct dbo.SiteLog.UserId)
from SiteLog
where PortalId = @PortalId
and dbo.SiteLog.DateTime between '01.01.2007' and '01.01.2008'
group by convert(varchar,DateTime,102)
order by Datum desc

your's
felix
 
New Post
2/22/2008 3:15 AM
 
Stephan Henn

Joined: 1/15/2007
Posts: 59

Aahh: I forgot to set
Bar Name Column
Bar Value Column
to the matching columns in my query.
RTFM, right ;-)
 
New Post
2/23/2008 11:59 AM
 
Andrew Nurse

Joined: 4/12/2004
Posts: 433

Glad you fixed the problem! Still, the module should be displaying a clearer error, so I'll log a bug for it.

Andrew Nurse
DotNetNuke Core Team Member and Reports Module Project Lead
Microsoft Certified Professional Developer
 
New Post
10/10/2008 2:29 AM
 
Mike

Joined: 9/29/2008
Posts: 5

I have the same problem and my columns are set right.

my query

SELECT fact_periodica.no_ciclo, hist_aux_val.consumo_fact_ap FROM hist_aux_val INNER JOIN fact_periodica ON hist_aux_val.id_proceso = fact_periodica.id_proceso INNER JOIN instalacion ON hist_aux_val.id_servicio = instalacion.id_servicio INNER JOIN clave_lectura ON hist_aux_val.id_clave_lectura = clave_lectura.id_clave_lectura INNER JOIN servicio ON hist_aux_val.id_servicio = servicio.id_servicio INNER JOIN cliente ON servicio.id_cliente = cliente.id_cliente WHERE (hist_aux_val.id_servicio IN (10444)) AND (fact_periodica.no_ciclo >= 65) AND (fact_periodica.no_ciclo <= 78) ORDER BY fact_periodica.no_ciclo


 		 fact_periodica.no_ciclo

 		 hist_aux_val.consumo_fact_ap

 The result in grid mode is:

no_ciclo consumo_fact_ap
65 9.00
65 26.00
66 10.00
66 36.00
67 10.00
67 32.00
68 10.00
68 26.00
69 14.00
69 16.00
70 15.00
70 20.00
71 12.00
71 19.00
72 16.00
72 21.00
73 14.00
73 27.00
74 16.00
74 28.00
75 16.00
75 23.00
76 14.00
76 16.00
77 9.00
77 9.00
78 15.00
78 10.00

 
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