Change permissions of folders
c#, file-permissions, permission-denied
Solution
You could try something like this:
var dirInfo = new DirectoryInfo(folder);
dirInfo.Attributes &= ~FileAttributes.ReadOnly;
This uses the bitwise logical AND operator (&=) to append to the existing Attributes property the inverse of `FileAttributes.ReadOnly` (because `~` is bitwise NOT).
Problem
I want to change some folder permissions (set to Read-Only) to ReadWriteExecute! I wrote this code, but the folder permission is still Read-Only: ``` private void ChangePermissions(string folder) { string userName = Environment.UserName; FileSystemAccessRule accessRule = new FileSystemAccessRule(userName, FileSystemRights.FullControl, InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit, PropagationFlags.None, AccessControlType.Allow); DirectoryInfo directoryInfo = new DirectoryInfo(folder); DirectorySecurity directorySec = directoryInfo.GetAccessControl(); directorySec.AddAccessRule(accessRule); directoryInfo.SetAccessControl(directorySec); } ``` If I want delete this directory with `Directory.Delete(folder, true)` I get this error message: "Access to the path 'entries' is denied." Sure, the permissions are still Read-Only! What is wrong here?