I draged and droped a ReportViewer in my aspx page then tried to debug the page. I got this error "Error: Sys.ArgumentNullException: Value cannot be null.
Parameter name: panelsCreated[1]" I noticed that its because i have the AjaxControlToolKt assembly. Is there another way to solve this with out having to remove the AjaxControlToolKit file?
Help this the first time am creating reports
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Gaurav GuptaPosted Jun 2, 2015, 5:56 AM
NarayanPosted Sep 7, 2011, 5:25 AM
If you are not going to add the report to the viewer, try to set visibility off and turn it on after assigning the report.
In case you are using reportviewer version 10 , this needs script manager