title: want to send same random number to user's mail that are stored in database
body: <p>I'm developing a web application in which I have one Inquiry form and in that form I'm generating one random number and storing it in the database. My code looks like</p>
  
  <pre><code> clsInquiry objInquiry = new clsInquiry();
      try
      {   
  
          cn.Open();
  
          objInquiry.RandomStr = GetUniqueKey(10);
  
  
          MailMessage mail = new MailMessage();
          mail.From = new MailAddress("abc@gmail.com");
          mail.To.Add(txt_eid.Text);
  
          mail.Body += "Thank u for putting inquiry for " + productName + " ;&lt;br&gt;&lt;br&gt;";
          mail.Body += "Please Click on Following Link To Download Your Demo" + "&lt;br&gt;&lt;br&gt;";
  
          mail.Body += "&lt;a href=\"http://www.xyz.co.in/Download.aspx?No='" + GetUniqueKey(10) + "'\"&gt;Demo Download&lt;/a&gt;";
          //mail.Body += "&lt;a href=\"" + MyUrl + "\"&gt;Demo Download&lt;/a&gt;";
          SmtpClient smtp = new SmtpClient();
          smtp.Host = "smtp.gmail.com";
          smtp.Port = 587;
          smtp.EnableSsl = true;
          smtp.Credentials = new System.Net.NetworkCredential("abc@gmail.com ", "****");
          smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
          smtp.Send(mail);
  
      }
      catch (Exception ex)
      {
          ex.ToString();
      }
  </code></pre>
  
  <p>and function for random Number.....   </p>
  
  <pre><code>public static string GetUniqueKey(int maxSize)
  {
     //code for it
  
  }
  </code></pre>
  
  <p>and I have successfully generated and stored the number in the database ..</p>
  
  <p>but in the <code>url</code> of the <code>hyperlink</code> in <code>mail.body</code> that I've called random number function to send to user, different random number is generated .. I want the same random number in both places.what should I do ?</p>