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

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.

Here is code

Full access control to folder or directory


        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;

or


File.SetAttributes(files.FullName, File.GetAttributes(files.FullName) & ~FileAttributes.ReadOnly);

Create a file with Read Write permission


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

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