Security question for a Winforms user control on a web page

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Joe - 21 Dec 2004 20:56 GMT

I have a winforms user control that I need to use in our web page. The
control connects to a remoting object.

When I try and make the initial connection I get an error message:

"The application attempted to perform an operation not allowed by the
security policy. To grant this application the required permission, please
contact your system administrator, or use the Microsoft .NET Framework
Configuration tool.

That assembly does not allow partially trusted callers"

I'm not sure what to do here. The assembly is downloaded by IE so I don't
know how to change its' permissions.

Thanks,
Joe

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Scott Leonard - 22 Dec 2004 18:35 GMT

You need to set the AllowPartiallyTrustedClient in your AssemblyInfo, and
create a security policy in the .Net Configuration for your code. See this
thread: "Security Exception - Winform usercontrol hosted in ASP.NET" and
there's more info here as well:
http://blogs.msdn.com/shawnfa/archive/2003/06/20/57023.aspx
http://support.microsoft.com/default.aspx?scid=kb;en-us;311301&FR=1
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnforms/html/wi
nforms11122002.asp
http://www.eggheadcafe.com/articles/20021205.asp
http://msdn.microsoft.com/msdnmag/issues/02/01/userctrl/default.aspx
http://blogs.msdn.com/shawnfa/archive/2004/09/07/226530.aspx

HTH,
sbl

> I have a winforms user control that I need to use in our web page. The
> control connects to a remoting object.
[quoted text clipped - 13 lines]
> Thanks,
> Joe

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Joe - 23 Dec 2004 03:27 GMT

Great links - Thanks!
I already had the APTC attribute but it didn't help. The reason was due to
the remoting. There were a number of other exceptions being thrown also. I
ended up setting my Internet zone to full trust to test it and it worked
fine.

I'm going to read the info in the links which I'm sure will solve my
problem.

Thanks again,
Joe

> You need to set the AllowPartiallyTrustedClient in your AssemblyInfo, and
> create a security policy in the .Net Configuration for your code. See this
> thread: "Security Exception - Winform usercontrol hosted in ASP.NET" and
> there's more info here as well:
> http://blogs.msdn.com/shawnfa/archive/2003/06/20/57023.aspx
> http://support.microsoft.com/default.aspx?scid=kb;en-us;311301&FR=1

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnforms/html/wi
nforms11122002.asp

> http://www.eggheadcafe.com/articles/20021205.asp
> http://msdn.microsoft.com/msdnmag/issues/02/01/userctrl/default.aspx
[quoted text clipped - 20 lines]
> > Thanks,
> > Joe

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Security question for a Winforms user control on a web page

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