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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?

thejartender
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Krauzzer
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2 Answers2

40

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");

woggles
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TommyGunn32
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  • @TheMuffinMan According to the [reference](http://referencesource.microsoft.com/#System.Web/HttpResponse.cs,3ba8b457eb5f1b0f,references) it calls `AppendHeader`. This checks the workerrequest and probably branches off depending on which header-adding is applicable for the hosting environment. – Phil Cooper Oct 16 '15 at 14:50
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Go to Project Project properties (right click on project) and go to web tab on left side and check the property use Local IIS Web Server. enter image description here

Ravikumar pinni
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