How to set read write permission to directory in C#.NET

Posted by: Vishal Kottarathil on 12:31 AM in .Net, C#, File and Folder Permission, Files, IIS 0

While working with files and directory we need read write permission on files and folders, this can be done by manually giving access permission to directory as well as programmatically.

private static void SetPermissions(string dirPath)

{

    DirectoryInfo info = new DirectoryInfo(dirPath);

    WindowsIdentity self = System.Security.Principal.WindowsIdentity.GetCurrent();

    DirectorySecurity ds = info.GetAccessControl();

    ds.AddAccessRule(new FileSystemAccessRule(self.Name,

    FileSystemRights.FullControl,

    InheritanceFlags.ObjectInherit |

    InheritanceFlags.ContainerInherit,

    PropagationFlags.None,

    AccessControlType.Allow));

    info.SetAccessControl(ds);

}




 read-only on access on file

FileInfo myFile = new FileInfo(files.FullName);

myFile.IsReadOnly = false;

  File with Read Write permission

FileStream F = new FileStream("test.dat", FileMode.OpenOrCreate, FileAccess.ReadWrite);