UnauthorizedAccessException trying to delete a file in a folder where I can delete others files with the same code

Question

I'm getting a Unauthorized Access Exception

• in a file which I can delete manually.
• in a folder where I'm able to delete by code other files
• and the file isn't marked as read only
• besides, I'm using Windows XP in a standalone PC and I have not assigned any permissions to the folder or the file.
• no other process is using the file

If it helps, this is the code where the exception ocurrs:

protected void DeleteImage(string imageName) {     if (imageName != null)     {         string f = String.Format("~/Images/{0}", imageName);         f = System.Web.Hosting.HostingEnvironment.MapPath(f);         if (File.Exists(f))         {             if (f != null) File.Delete(f);         }     } } 

Why could this happen?

Answer 1

I encountered the same problem, and found that writing my own Directory.Delete wrapper fixed it up. This is recursive by default:

using System.IO;  public void DeleteDirectory(string targetDir) {     File.SetAttributes(targetDir, FileAttributes.Normal);      string[] files = Directory.GetFiles(targetDir);     string[] dirs = Directory.GetDirectories(targetDir);      foreach (string file in files)     {         File.SetAttributes(file, FileAttributes.Normal);         File.Delete(file);     }      foreach (string dir in dirs)     {         DeleteDirectory(dir);     }      Directory.Delete(targetDir, false); }