//----- Check User  -----//
        private bool CheckUser()
        {
            bool check = false;
            Dictionary <string, string> properties = new Dictionary <string, string>();

            properties.Add("code", tb_Usercode.Text);
            properties.Add("password", tb_Password.Text);
            try
            {
                UserVM userVM = qLUserBLL.CheckUser(properties);
                if (userVM != null)
                {
                    check = true;
                }
            }
            catch (Exception) {}
            return(check);
        }