.net – Resolving “this operation requires IIS integration pipeline mode” in ASP.net MVC2

asp.net-mvc-2downloadiis-7.5netnotimplementedexception

I'm developing an ASP.net MVC2 application, and implement an export to .csv controller action, but when I add the headers to force the download, The following appears in the debugger:

"this operation requires IIS integration pipeline mode"

I have searched on numerouse sites with Google, but have yet to resolve this. I am using:

  • IIS 7.5
  • Windows 7 Ultimate and
  • .Net Framework 4.0,

The application pools for ASP.net are configured in integrated pipeline mode, as I don't understand the problem.

Can the community assist me solving this and explaining the error to me?

Best Answer

http://devproj20.blogspot.com/2008/02/this-operation-requires-iis-integrated.html

"You can work around this problem by adding your header this way instead:"

Response.AddHeader("myHeader", "someValue");

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