System.Security.SecurityException?

Question

Description: 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 change the application's trust level in the configuration file.

Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

My code runs proper in my local server it's create issue when upload it to server.

Have gone through following code but it's not working for me :

Sample 1 :

<system.web>
  <securityPolicy>
    <trustLevel name="Full" policyFile="internal"/>
  </securityPolicy>
</system.web>

Sample 2 :

<location allowOverride="false">
  <system.web>
    <securityPolicy>
      <trustLevel name="Full" policyFile="internal" />
      <trustLevel name="High" policyFile="web_hightrust.config" />
      <trustLevel name="Medium" policyFile="web_mediumtrust.config" />
      <trustLevel name="Low"  policyFile="web_lowtrust.config" />
      <trustLevel name="Minimal" policyFile="web_minimaltrust.config"/>
    </securityPolicy>
  </system.web>
</location>

Sample 3 :

<system.web>
    <trust level="Full" originUrl="" />
</system.web>

I can't able to access IIS I have only FTP details to upload file. Please suggest me option to solve it from webconfig file.

Answer 1

The approach you used in sample three is similar to my solution, but I did not add the additional attribute that you had. Try this simple approach.

  <system.web>
    <trust level="Full"/>
  </system.web>

This came from an MSDN posting I read.