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Editorial Team
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Asked: 2026-05-23T18:50:39+00:00

I’m developing a website in which I need to show docked reports With .Net

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I’m developing a website in which I need to show docked reports

With .Net framework 3.5 its working fine but when upgraded to framework 4.0 I’m getting the following error in the code.

The type initializer for 'DevExpress.XtraReports.UI.XtraReport' threw an exception.

and in the browser, I’m getting an error as 

This method explicitly uses CAS policy, which has been obsoleted by the .NET Framework. In order to enable CAS policy for compatibility reasons, please use the NetFx40_LegacySecurityPolicy configuration switch. Please see http://go.microsoft.com/fwlink/?LinkID=155570 for more information.

Please let me know how to solve this issue.

Thanks

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1 Answer

  1. Editorial Team

    I solved the issue by adding following element in web.config file under system.web tag 

    <trust legacyCasModel="true"/>

    reference link

    http://blogs.rev-net.com/ddewinter/2010/03/02/tip-20-opting-out-of-security-changes-in-net-4-in-asp-net-and-custom-appdomains/

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