DeleteWithPrejudice and Purge
These 2 extension method allows you to delete a folder or just purge all the folder content even if there are Readonly, System, and/or Hidden attributes files in it. The default Delete method doesn't work if there are files with Readonly, System, and/or Hidden attributes.
Source
public static void DeleteWithPrejudice(this DirectoryInfo directoryInfo)
{
directoryInfo.DeleteWithPrejudice(true);
}
public static void Purge(this DirectoryInfo directoryInfo)
{
directoryInfo.DeleteWithPrejudice(false);
}
private static void DeleteWithPrejudice(this DirectoryInfo directoryInfo, bool deleteRoot)
{
/* Determine whether the directory exists */
if (!directoryInfo.RefreshExists())
{
return;
}
directoryInfo.Refresh();
/* Remove Readonly, System, and Hidden attributes prior to deletion */
directoryInfo.Attributes = FileAttributes.Directory;
directoryInfo.DeleteAllFiles(true);
var folderPaths = new List<DirectoryInfo>();
foreach (var subDirectory in directoryInfo.GetDirectories("*", SearchOption.AllDirectories))
{
folderPaths.Add(subDirectory);
}
if (deleteRoot)
{
folderPaths.Add(directoryInfo);
}
// sort has a side effect that means the deepest directories will be at the top
folderPaths.Sort((x, y) => y.FullName.CompareTo(x.FullName));
foreach (var folderPath in folderPaths)
{
if (!folderPath.RefreshExists())
{
continue;
}
folderPath.Attributes = directoryInfo.Attributes & ~ReadOnlyHiddenSystemFileAttributes;
folderPath.Refresh();
folderPath.Delete();
}
}
Example
directoryToDelete.DeleteWithPrejudice();
Author: John Simons
Submitted on: 17 jun. 2010
Language: C#
Type: System.IO.DirectoryInfo
Views: 4536