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Add ReportViewer httphandler and entire website errors

Posted By:      Posted Date: October 21, 2010    Points: 0   Category :ASP.Net

I have a site thats working fine - I added a page with a reportviewer control and get the error message

The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file.  Add <add verb="*" path="Reserved.ReportViewerWebControl.axd" type = "Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> to the system.web/httpHandlers section of the web.config file.

I added this to the system.web section of web.config, and when I do - the entire site no longer works, I get a "500 - Internal server error." 

The web.config currently reads:

<?xml version="1.0"?>
		<add connectionString="Server=server;
         User ID=user;
         Password= password" 

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