public string Create(User user)
 {
     if (userGateway.Create(user) > 0)
     {
         return "Created Successfully!";
     }
     else
     {
         return "Could Not Created!";
     }
 }
        protected void addUserButton_Click(object sender, EventArgs e)
        {
            User user = new User();
            user.FullName = fullNameTextBox.Text;
            user.EmailAddress = emailAddressTextBox.Text;
            user.ContactNumber = contactNumberTextBox.Text;
            user.UserName = userNameTextBox.Text;
            user.Password = passwordTextBox.Text;

            message.InnerHtml = userManager.Create(user);
        }
        public int Create(User user)
        {
            SqlConnection connection = new SqlConnection(databaseConString);
            string query = "INSERT INTO tbl_user VALUES('" + user.FullName + "','" + user.EmailAddress + "','" +
                           user.ContactNumber + "','" + user.UserName + "','" + user.Password + "')";
            SqlCommand command = new SqlCommand(query, connection);

            connection.Open();
            int rowAffected = command.ExecuteNonQuery();
            connection.Close();
            return rowAffected;
        }
        public User GetUserInformation(string loginUserName, string loginPassword)
        {
            SqlConnection connection = new SqlConnection(databaseConString);
            string query = "SELECT * FROM tbl_user";
            SqlCommand command = new SqlCommand(query, connection);
            connection.Open();

            SqlDataReader reader = command.ExecuteReader();

            User user = new User();

            while (reader.Read())
            {
                user.UserName = reader["username"].ToString();
                user.Password = reader["password"].ToString();
            }
            reader.Close();
            connection.Close();

            return user;
        }