im facing the problem into list....

List<string> list=new List<string>();// declered the list

// fetch data from the database...
 con.Open();
            SqlCommand cmd = new SqlCommand("select AC_NAME,AC_NO from PGM_MAST where AGENT_NO=" + txt_Agnt.Text + "", con);
            SqlDataReader dr; 
            dr = cmd.ExecuteReader();
            while (dr.Read())
            {
                for ( j=0; j < dr.FieldCount; j++)
                {
                    list.Add(dr[j].ToString());
                    
                }
 
                txt_AC_Name.Text = list[0].ToString();
                txt_AC.Text= list[1].ToString();
                j++;
                 
               
            }
            dr.Close();
            con.Close();