private void btnSaveUsers_Click(object sender, EventArgs e)
 {
     if (ConsoleAPI.SetUsersList(_users))
     {
         _dirty_flag = false;
     }
     else
     {
         _dirty_flag = true;
     }
 }
        private void btnSaveUsers_Click(object sender, EventArgs e)
        {
            Cursor.Current = Cursors.WaitCursor;
            EIBUsersConf conf = new EIBUsersConf();

            foreach (ListViewItem item in this.lvUsers.Items)
            {
                EIBUserConf user = item.Tag as EIBUserConf;
                conf.List.Add(user);
            }

            bool res = ConsoleAPI.SetUsersList(conf);

            Cursor.Current = Cursors.Default;
        }