如何从数据库表中检索ID并将其插入SMTP客户端？

Question

I am developing a web application that should send quizzes to the users automatically. Now, I am working in writing simple console application that will read the Quiz table in the database which its schema as following: QuizID, Title, Description, IsSent

IsSent is a flat with Bit data type which specified the status of message sent or not. I am trying now to retrieve the QuizID and IsSent from the database and doing the following logic: If the quiz was not sent, sends it Else don't do anything

I am writing the small amount of code and I struggled now with retrieving the QuizID and IsSent flag and apply the above logic on both of them. So HOW TO DO THAT?

My code-behind:

protected void Page_Load(object sender, EventArgs e)
    {
        SmtpClient sc = new SmtpClient("MAIL ADDRESS");
        MailMessage msg = null;


        try
        {

            msg = new MailMessage("yyyyyyy@gmail.com",
                "xxxxxxxxxx@gmail.com", "Message from PSSP System",
                "This email sent by the system");
            msg.IsBodyHtml = true;
            sc.Send(msg);
        }

        catch (Exception ex)
        {
            throw ex;
        }

        finally
        {
            if (msg != null)
            {
                msg.Dispose();
            }
        }


        //For requesting the Quiz_ID and check the IsSent flag for whether sending it or not
        string connString = "Data Source=localhost\\sqlexpress;Initial Catalog=psspdb;Integrated Security=True";
        string cmdText = "SELECT QuizID, IsSent FROM dbo.QUIZ";

        using (SqlConnection conn = new SqlConnection(connString))
        {
            conn.Open();
            // Open DB connection.
            using (SqlCommand cmd = new SqlCommand(cmdText, conn))
            {
                SqlDataReader reader = cmd.ExecuteReader();
                While (reader != null){
                    if (reader.Read())
                        if (reader["IsSent"].Equals(0))

                }
            }
        }


    }

Answer 1

You can do something like this

       long quizId;
       int isSent;       
       While (reader != null){
           if (reader.Read())
              if (reader["IsSent"].Equals(0)){
                  quizId = Convert.ToInt64(reader["quizId"]);
                  isSent = Convert.ToInt32(reader["isSent"]);
              }
       }