Hi all,

 I am trying to create a sub folder in my web application. on my local server it is working fine but my hosting server it is giving some security exception as follows,

URL for page is : http://www.radiomusic.com/folder.aspx

can anybody help me out its really urgent....  

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=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Source Error:

[No relevant source lines]

[SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
   System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
   System.Security.CodeAccessPermission.Demand() +59
   System.IO.Directory.InternalCreateDirectory(String fullPath, String path, DirectorySecurity dirSecurity) +458
   System.IO.Directory.CreateDirectory(String path, DirectorySecurity directorySecurity) +150
   System.IO.Directory.CreateDirectory(String path) +6
   RadioMusic.App_Code.FileIO.CreateFolder(String path) in fileio.cs:19
   RadioMusic.folder.btnCreateDirectory_Click(Object sender, EventArgs e) in folder.aspx.cs:56
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6953
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +154
   System.Web.UI.Page.ProcessRequest() +86
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
   System.Web.UI.Page.ProcessRequest(HttpContext context) +49
   ASP.folder_aspx.ProcessRequest(HttpContext context) in App_Web_folder.aspx.cdcab7d2.odnuii0d.0.cs:0
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +154
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Hi

What happens in your code is the application attempted to perform IO operation which not allowed by the security policy. For testing purposes
You can try to add this line in your web.config

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

Here you can get more information

http://support.microsoft.com/?kbid=555466&SD=tech

A more prosaic approach is looking into the call stack and figure out what was throwing exception and using the custom permission set for security policy.

Hi,

you have to ask you server administrator to set access for creating new things for you application folder... 

Thanks for you help .

 I have tried this but giving me the syntax error in web.config file.....

Also one thing that I noticed in Error messages is that the the error is generated by the .net framework 2.0,

This mean that my host is using .net framework 2.0 and I compiled this site in framework 1.1.

so is this is the problem associated with the .net framework? if yes then changing version of framework 2.0 to 1.1 on Hosting server will solve my issue?

meetpravin123:

 I have tried this but giving me the syntax error in web.config file.....

Hi

Is this message about ".config setting 'allowOverride' is set to 'false' ......"? If so, it means host administrator has locked the security policy and you are not permitted to override it.

Please contact your web hosting company and ask them to customize your trust level so that your website can function properly.