C# Access hata vermiyor ama komutlar çalışmıyor

using System;
using System.Data;
using System.Data.OleDb;
using System.Windows.Forms;

namespace elaKiyafetAlimSatim
{
    public partial class Form3 : Form
    {
        public Form3()
        {
            InitializeComponent();
        }

        private void guna2Button1_Click(object sender, EventArgs e)
        {
            string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\\elaKiyafet.accdb; Persist Security Info=False";
            string query = "INSERT INTO getUrunler (urunBarkodu, urunFiyati, urunIsmi, sBeden, mBeden, lBeden, xlBeden, 2xlBeden, 3xlBeden) VALUES ('" + guna2TextBox2.Text + "','" + guna2TextBox3.Text + "','" + guna2TextBox1.Text + "','" + guna2TextBox4.Text + "','" + guna2TextBox5.Text + "','" + guna2TextBox6.Text + "','" + guna2TextBox7.Text + "','" + guna2TextBox8.Text + "','" + guna2TextBox9.Text + "')";
            MessageBox.Show("Sorgu: " + query, "Bilgi", MessageBoxButtons.OK, MessageBoxIcon.Information);

            using (OleDbConnection conn = new OleDbConnection(connectionString))
            {
                try
                {
                    conn.Open();
                    OleDbCommand command = new OleDbCommand(query, conn);

                    command.Parameters.AddWithValue("@urunBarkod", guna2TextBox2.Text);
                    command.Parameters.AddWithValue("@urunFiyati", guna2TextBox3.Text);
                    command.Parameters.AddWithValue("@urunIsmi", guna2TextBox1.Text);
                    command.Parameters.AddWithValue("@sBeden", guna2TextBox4.Text);
                    command.Parameters.AddWithValue("@mBeden", guna2TextBox5.Text);
                    command.Parameters.AddWithValue("@lBeden", guna2TextBox6.Text);
                    command.Parameters.AddWithValue("@xlBeden", guna2TextBox7.Text);
                    command.Parameters.AddWithValue("@2xlBeden", guna2TextBox8.Text);
                    command.Parameters.AddWithValue("@3xlBeden", guna2TextBox9.Text);

                    int rowsAffected = command.ExecuteNonQuery();
                    if (rowsAffected > 0)
                    {
                        MessageBox.Show("Etkilenen satır sayısı: " + rowsAffected.ToString());
                        MessageBox.Show("Ürün eklendi.", "Bilgi", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                    else
                    {
                        MessageBox.Show("Ekleme başarısız. Hiçbir satır etkilenmedi.", "Hata", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }

                }
                catch (Exception ex)
                {
                    MessageBox.Show("Ürün eklenemedi. " + ex.Message, "Hata", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }


        private void guna2Button2_Click(object sender, EventArgs e)
        {
            // Access veritabanı bağlantı dizesi
            string connectionString = "Provider=Microsoft.ACE.OleDb.12.0;Data Source=elaKiyafet.accdb";
            string query = "DELETE FROM getUrunler WHERE urunBarkodu = @urunBarkod";

            using (OleDbConnection connection = new OleDbConnection(connectionString))
            {
                try
                {
                    connection.Open();
                    OleDbCommand command = new OleDbCommand(query, connection);
                    command.Parameters.AddWithValue("@urunBarkod", guna2TextBox10.Text);

                    int rowsAffected = command.ExecuteNonQuery();
                    if (rowsAffected > 0)
                    {
                        MessageBox.Show("Ürün silindi.", "Bilgi", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        guna2TextBox10.Text = "";
                    }
                    else
                    {
                        MessageBox.Show("Ürün silinemedi.", "Hata", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Ürün silinemedi. " + ex.Message, "Hata", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        private void guna2TextBox1_TextChanged(object sender, EventArgs e)
        {
            // Burada herhangi bir işlem yapılmıyor.
        }

        private void Form3_Load(object sender, EventArgs e) {
            string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\\elaKiyafet.accdb;";
            using (OleDbConnection conn = new OleDbConnection(connectionString))
            {
                try
                {
                    conn.Open();
                    MessageBox.Show("Bağlantı başarılı!", "Bilgi", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Bağlantı Hatası: " + ex.Message, "Hata", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }

        }
    }
}