protected void Calendar_SelectionChanged(object sender, EventArgs e)
        {
            SqlConnection con = new SqlConnection(constr);

            con.Open();
            LabelDay.Text             = Calendar.SelectedDate.ToString("dd MMMM yyyy");
            DishListDayClient.Visible = true;
            AddDishDayClient.Visible  = true;
            dayDiet.Visible           = true;
            SqlCommand cmd = new SqlCommand("SELECT dm.id AS dania_menuID, d.Id, d.nazwa, d.kategoria, d.przepis FROM Danie d JOIN Dania_Menu dm ON d.Id = dm.Id_dania JOIN Menu m ON dm.Id_menu = m.id WHERE CONVERT(date, m.data, 103)=CONVERT(date, '" + Calendar.SelectedDate + "', 103) AND m.id_klienta=" + KlientID, new SqlConnection(constr));
            //SqlCommand cmd = new SqlCommand("SELECT dm.id AS dania_menuID, d.Id, d.nazwa, d.kategoria, d.przepis FROM Danie d JOIN Dania_Menu dm ON d.Id = dm.Id_dania JOIN Menu m ON dm.Id_menu = m.id WHERE CONVERT(date, m.data, 103)=CONVERT(date, '" + Calendar.SelectedDate.ToShortDateString() + "', 23) AND m.id_klienta=" + KlientID, new SqlConnection(constr));
            SqlDataAdapter sda = new SqlDataAdapter(cmd);
            DataTable      dt  = new DataTable();

            sda.Fill(dt);
            DishListDayClientRepeater.DataSource = dt;
            DishListDayClientRepeater.DataBind();

            //ZLICZANIE
            odswiezZliczanie();
            //cmd = new SqlCommand(
            //"SELECT SUM(ps.kalorie*s.ilosc/100) Kalorie, SUM(ps.weglowodany*s.ilosc/100) Weglowodany, SUM(ps.bialka*s.ilosc/100) Bialka, SUM(ps.blonnik*s.ilosc/100) Blonnik, SUM(ps.sol*s.ilosc/100) Sol, SUM(ps.tluszcze*s.ilosc/100) Tluszcze " +
            //"FROM Produkt_spozywczy ps JOIN Skladnik s ON ps.Id = s.Id_produktu JOIN Danie d ON d.Id = s.Id_dania JOIN Dania_Menu dm ON d.Id = dm.Id_dania JOIN Menu m ON dm.Id_menu = m.id " +
            //"WHERE CONVERT(date, m.data, 103) = CONVERT(date, '" + Calendar.SelectedDate.ToShortDateString() + "', 23) AND m.id_klienta=" + KlientID, con);
            con.Close();
        }
        protected void odswiezMenu()
        {
            SqlCommand     cmd = new SqlCommand("SELECT dm.id AS dania_menuID, d.Id, d.nazwa, d.kategoria, d.przepis FROM Danie d JOIN Dania_Menu dm ON d.Id = dm.Id_dania JOIN Menu m ON dm.Id_menu = m.id WHERE CONVERT(date, m.data, 103)=CONVERT(date, '" + Calendar.SelectedDate + "', 103) AND m.id_klienta=" + KlientID, new SqlConnection(constr));
            SqlDataAdapter sda = new SqlDataAdapter(cmd);
            DataTable      dt  = new DataTable();

            sda.Fill(dt);
            DishListDayClientRepeater.DataSource = dt;
            DishListDayClientRepeater.DataBind();
        }