private void dg_Urunler_DoubleClick(object sender, EventArgs e)
        {
            Form_Urun urun = new Form_Urun(UrunId);

            urun.ShowDialog();
        }
        private void btn_UrunEkle_Click(object sender, EventArgs e)
        {
            Form_Urun urun = new Form_Urun();

            urun.ShowDialog();
        }