I would like to change the file manager code to hide the "Write To Folder" column in the permissions grid of the file manager.  I would also like to change the name of the "View Folder" column header.  If I mod the code behind (beloto check the column count, I get an "object reference not set to an instance of an object".  How can I hide this column?

    Private Sub GeneratePermissionsGrid()

        Dim folderPath As String = FileSystemUtils.StripFolderPath(DestPath).Replace("\", "/")

        dgPermissions.FolderPath = folderPath & "/"
        If Not IsHostMenu Then
            dgPermissions.DataBind()   'this point is not missed
        End If
        
'test mod
        Dim intTemp As Int32
        intTemp = dgPermissions.Columns.Count  'throws error "object reference not set to an instance of an object"