var fbd = new FolderBrowserDialog() { Description = "Selezionare la cartella in cui si trovano le verifiche elettriche" };
            fbd.SelectedPath = path;
            DialogResult result = fbd.ShowDialog();


            if (result == DialogResult.OK && !string.IsNullOrWhiteSpace(fbd.SelectedPath))
            {
                dirInfo = new DirectoryInfo(fbd.SelectedPath);

                XmlDocument doc = new XmlDocument();
                path = Path.Combine(Environment.ExpandEnvironmentVariables("%userprofile%"), "Documents", "Meneghini");
                //MessageBox.Show(path);
                doc.Load(path + "\\configPath.xml");
                XmlNode nodo = doc.DocumentElement.SelectSingleNode("/config/defaultFolder");
                nodo.InnerText = dirInfo.FullName;
                doc.Save(@path);
                
                

                //nodo = doc.DocumentElement.SelectSingleNode("/config/defaultFolder");
                //MessageBox.Show(nodo.InnerText);


            }