Uploading images caused IO handle locked?

[tomexou]

I used RadFileExplorer (2010 Q2 SP2 v0929) to upload multiple images into a temp directory,
then I want to move the directory to another location.
Screen1

Platform: VS2010+Dev Web Server+ASP.NET 4.0.
Moving the uploaded subdir:  "D:\Items\Temp\xxx\" to "D:\Items\1\", but It occurred error:
"Access to the path 'D:\Items\Temp\xxx' is denied."

I have ensured and granted enought IO security for this operation.
Uses Unlocker tools to see what handles are hold?
Screen2

This lock will be a BIG problem for IO operation.
They are will not release the handle until the VS2010 dev web server is stopped.
I have searched Google for this lock problem, but it seems to nobody talked yet.

Paste thesimple codesnapet:

editorDirPath = string.Format("{0}/Temp/1", editorBasePath);
System.IO.Directory.CreateDirectory(this.MapPath(editorDirPath));

// Setting
ctrlProductPhoto.TreePaneWidth = 0;
ctrlProductPhoto.Upload.ControlObjectsVisibility = ControlObjectsVisibility.None;
ctrlProductPhoto.Upload.MaxFileInputsCount = 1;

// DirPath
targetDirPaths = new string[] {editorDirPath};
ctrlProductPhoto.Configuration.ViewPaths = targetDirPaths;
ctrlProductPhoto.Configuration.UploadPaths = targetDirPaths;
ctrlProductPhoto.Configuration.DeletePaths = targetDirPaths;

Please advice, thanks.

[tomexou]

For uploading with directory lock, I also tested the RadEditor's ImageManager and DocManager.
Once uploaded, ImageManager will cause the same lock to target directory, but DocManager would not.

[Fiko]

Hello Tomex,

The problem that you experience is not related to Telerik controls and it is beyond of our support. In your case I recommend you to paste the question in the Microsoft's forums related to Cassini server. There you can get the best solution possible.

Personally, I have experienced the same problem before and the solution I found was to move the directory (the whole application) to a new location (a different folder). This fixed the problem on my case, so I recommend you to try it before asking in the forums.

I hope this helps.

Best wishes,
Fiko
the Telerik team

[tomexou]

Thanks for your kind reply.

I have tried all solutions in Google searched results, including:
1. Grants 'Network Service' or IUSER_xxx' complete authority.
2. Changes owner authority to subdirs.
3. Grants authority for ASP.NET temp folders.
4. Adds <identity impersonate="true" in web.config to try fixed user authority.
5. Moves the whole app dir to another folder.

All above are not working, so pity :(

At last, I set temp. path under App_Data/, the image files would not be locked.
But App_Data files are not browsable.

Nothing could do, so I uploaded app to publish server (Win2003, IIS6),
they works normal.

Maybe the ASP.NET development server (running as Admin) in VS2010 results in lock problems.