private void urunKaydetButonu_Click(object sender, EventArgs e)
        {
            //Ürün güncelleştirme işlemi(ürün IDsine göre):
            DataGridViewRow seciliSatir = dataGridView1.CurrentRow;

            DatasetTableAdapters.urunlerTableAdapter adaptor = new DatasetTableAdapters.urunlerTableAdapter();
            int uID = Convert.ToInt32(seciliSatir.Cells["urunID"].Value.ToString());

            adaptor.urunGuncelle(uruncesiditext.Text, markatext.Text, modeltext.Text, Convert.ToInt32(stoktext.Text), Convert.ToDouble(birimFiyattext.Text), uID);
            DatasetTableAdapters.urunlerTableAdapter adaptor2 = new DatasetTableAdapters.urunlerTableAdapter();
            dataGridView1.DataSource = adaptor2.GetUrunler();
            RefreshDataGridUrunler();
            MessageBox.Show("Güncelleme işlemi başarıyla tamamlandı.");
        }
 //Ürünler datagridinin güncellenmesini sağlayan method:
 public void RefreshDataGridUrunler()
 {
     DatasetTableAdapters.urunlerTableAdapter adaptor = new DatasetTableAdapters.urunlerTableAdapter();
     dataGridView1.DataSource = adaptor.GetUrunler();
 }