Pop up reminder on windows application using C#?

I am developing desktop application. i am using ms sql and C#.
testtable records.
noteid notetitle notelocation notedescription
101 Meles Zenawi Mekele meeting
102 Tigray Mekele northern star
103 Maineberi Mekele southern star
104 Axum axum centeral



now i have a form called "reminder" which is used for displaying data on loading of the page.
i want to display 3 dialog box(popup box) when the page is loading.... here is my code

Code:

---

private void rentalfrm_Load(object sender, EventArgs e)
        {

       
            string  city="Mekele";
sqlDataReader drnote;
     
        string    selectdata = "select noteid,notetitle from remindernotetbl where notelocation='"+city+"'";

            SqlCommand cmdnote = new SqlCommand(selectdata, dbcon);

            drnote = cmdnote.ExecuteReader();
         
 
            while(drnote.Read())
            {
             
                reminder rem = new reminder();
                rem.ShowDialog();
                }
             
            //drdate.Close();

            dbcon.Close();
}

---

This code not work correctly. it shows me 3 dialog box(pop up form of "reminder") but only retrieved the first row.
i want to see 3 dialog box(pop up form) with the 3 records on the row.
any help please

All we can see from that code is that you're displaying a dialogue for each record. There's no indication that you're actually reading any of the data from the data reader.