C# MVC Access to path denied when trying to write file

Question

I have an MVC application in which users are able to upload files. Before I write the uploaded file, I create a directory according to date time. I start off with C:\ApplicationName and end up with C:\ApplicationName\20111001\Filename.ext when the upload is completed (in theory).

My problem on my local Windows 7 machine is that I can not write the file.

I get an "access denied" exception no matter which user I give full access to the directory. The strange thing is that the date directory gets created just fine.

I have given the following users full access:

• [Current logged in user]
• NETWORK SERVICE
• IUSR
• IIS_IUSRS
• Guests
• Everyone

Without any success. I really don't understand what is going on here. When I give Everyone full access, I should be able to create a file right?

PS: I use Visual Studio 2010 and ASP.NET Development Server straight out of the box.

Solution 1

I am not running IIS, I am running the watered down version "ASP.NET Development Server". So I am quite limited

The problem is that in order for you to write to the file directory from the application you will need to run Visual Studio as Administrator.

Windows 7 is preventing the process from going outside of its sandbox because it is running with limited privileges. This is true even if your account is the administrator.

Solution 2

Check the permissions of the parent folder and make sure they are inheritable, you can check this on the advance options window.

Solution 3

This might help a bit... probably application pool permission is the culprit here:

IIS AppPoolIdentity and file system write access permissions

Comments

[TheGuest]

I have tried that, but I still get the "Access denied" exception.

[TheGuest]

I am not running IIS, I am running the watered down version "ASP.NET Development Server"

[TheGuest]

I am not running IIS, I am running the watered down version "ASP.NET Development Server". So I am quite limited.