Asp.net read data from database

Not read data from database

In table porezi have data

My code

Table header have, table data no have, no error

Some help?

My code

using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using System.Data.SqlClient;

namespace MyStore.Pages.Porezi
{
    public class IndexModel : PageModel
    {
        public List<ClientInfo> listClients = new List<ClientInfo>();
        public void OnGet()
        {
            try
            {
                String connectionString = "Data Source=.\\SQLEXPRESS;Initial Catalog=test;Integrated Security=True;Trust Server Certificate=True";

                using (SqlConnection connection = new SqlConnection(connectionString))
                {
                    connection.Open();
                    String sql = "SELECT * FROM porezi";

                    using (SqlCommand command = new SqlCommand(sql, connection))
                    {
                        using (SqlDataReader reader = command.ExecuteReader())
                        {
                            while (reader.Read())
                            {
                                ClientInfo clientInfo = new ClientInfo();
                                clientInfo.id = "" + reader.GetInt32(0);
                                clientInfo.redni_broj = reader.GetString(1);
                                clientInfo.naziv = reader.GetString(2);
                                clientInfo.procenat= "" + reader.GetString(3);
                                clientInfo.fiksna_vrednost = "" + reader.GetString(4);
                                clientInfo.oznaka = reader.GetString(5);

                                listClients.Add(clientInfo);
                            }
                        }

                    }
                }

            }
            catch (Exception ex)
            {
                Console.WriteLine("Exception: " + ex.ToString());  
            }
        }

        public class ClientInfo
        {
            public String id;
            public String redni_broj;
            public String naziv;
            public String procenat;
            public String fiksna_vrednost;
            public String oznaka;
        }
    }

}

REst of code