public static int UpdateAdmin(AdminDTO userDto)
        {
            string query = "UPDATE admin SET first_name = '" + userDto.FirstName + "',last_name = '" + userDto.LastName +
                           "', tel_mobile = '" + userDto.Mobile + "', email = '" + userDto.Email + "', user_name = '" + userDto.UserName +
                           "', password = SHA1('" + userDto.Password + "') WHERE id = " + userDto.Id;

            DataTable usersTable = DatabaseConnection.ConnectWithServer(query);

            if (usersTable != null)
            {
                return(1);
            }
            return(-1);
        }
        public static int AddAdmin(AdminDTO userDto)
        {
            DateTime dateTime = DateTime.Now.Date;

            string query = "INSERT INTO admin (first_name, last_name, tel_mobile, " +
                           "email, user_name, password, created_by) VALUES (" + "'" + userDto.FirstName + "','" + userDto.LastName +
                           "','" + userDto.Mobile + "','" + userDto.Email + "','" + userDto.UserName + "',SHA1('" + userDto.Password +
                           "'),'" + userDto.CreatedBy + "')";

            DataTable usersTable = DatabaseConnection.ConnectWithServer(query);

            if (usersTable != null)
            {
                return(1);
            }
            return(-1);
        }