Asp – MVC lose session state

asp.net-mvc

Please forgive me for my poor English.
This is driving me crazy. I'm writing an application in ASP.NET MVC. Basically I have some pages which require to use session state. But now the session state loses after the following code:

…

Session["admin_ID"] = "aa27ec10-d9d4-43d9-96f6-7cfb0d5099ca";

…

After the following code, session states loses:

    [AcceptVerbs(HttpVerbs.Post)]
    public ActionResult GenerateVerifyModel(FormCollection formCollection)
    {
      ...
      return File(zipPath, "application/x-zip-compressed");
    }

Other code works very well and session state does not lose.

Any suggestion will be appreciated.

Best Answer

Shot in the dark: If you set something in the session and return a file, maybe the HTTP headers doesn't carry session's information... explaining the lost of the session on subsequent calls. But I would doubt it. Pretty hard to tell without a clearer scenario!

Thanks

Related Solutions

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From the readme word doc for RC1 (not indexed by google)

ASP.NET Compiler Post-Build Step

Currently, errors within a view file are not detected until run time. To let you detect these errors at compile time, ASP.NET MVC projects now include an MvcBuildViews property, which is disabled by default. To enable this property, open the project file and set the MvcBuildViews property to true, as shown in the following example:

<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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Note Enabling this feature adds some overhead to the build time.

You can update projects that were created with previous releases of MVC to include build-time validation of views by performing the following steps:

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For MVC v5.1 use Html.EnumDropDownListFor

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For MVC 5 and lower

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namespace MyApp.Common
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This allows you to write:

ViewData["taskStatus"] = task.Status.ToSelectList();

by using MyApp.Common