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c#asp.netvisual-studioisolatedstorage

IsolatedStorageException: Unable to create the store directory

Hi I have to store some hidden information in Isolated space. For that I am using System.IO.Isolated class like

IsolatedStorageFile isf =     System.IO.IsolatedStorage.IsolatedStorageFile.GetStore(IsolatedStorageScope.User | IsolatedStorageScope.Assembly, null, null);
Stream writer = new IsolatedStorageFileStream(filename, FileMode.Create, isf);

IFormatter formatter = new BinaryFormatter();
formatter.Serialize(writer, appCollection.ToString());

writer.Close();

It works fine in Windows XP but on production server that is windows 2003 it shows exception

System.IO.IsolatedStorage.IsolatedStorageException: Unable to create the store directory.

I have a Everyone full control permissions in my asp.net project folder. Attention CSoft.Core is a personal Framework created by me.

This is my Stack Trace:

[IsolatedStorageException: Unable to create the store directory. (Exception from HRESULT: 0x80131468)]
System.IO.IsolatedStorage.IsolatedStorageFile.nGetRootDir(IsolatedStorageScope scope) +0
System.IO.IsolatedStorage.IsolatedStorageFile.InitGlobalsNonRoamingUser(IsolatedStorageScope scope) +97
System.IO.IsolatedStorage.IsolatedStorageFile.GetRootDir(IsolatedStorageScope scope) +137
System.IO.IsolatedStorage.IsolatedStorageFile.GetGlobalFileIOPerm(IsolatedStorageScope scope) +213
System.IO.IsolatedStorage.IsolatedStorageFile.Init(IsolatedStorageScope scope) +56
System.IO.IsolatedStorage.IsolatedStorageFile.GetStore(IsolatedStorageScope scope, Type domainEvidenceType, Type assemblyEvidenceType) +59
CSoft.Core.IO.StorageHelper.Save(String fileName, String content) in c:\Projectos\FrameworkCS\CSoft.Core\IO\StorageHelper.cs:18
CSoft.Web.UI.ViewStateHelper.SerializeViewState(HttpContext context, Object state) in c:\Projectos\FrameworkCS\CSoft.Web.Controls\Web\UI\ViewStateHelper.cs:65 CSoft.Web.UI.Page.SavePageStateToPersistenceMedium(Object state) in c:\Projectos\FrameworkCS\CSoft.Web.Controls\Web\UI\Page.cs:302
System.Web.UI.Page.SaveAllState() +236
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1099

Solution

  • I changed IsolatedStorage file to

    using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetMachineStoreForAssembly()) { }

    And this work.