private void button4_Click(object sender, EventArgs e)
{
Enginee nesne = new rfidbit.Enginee();
nesne.kayitSil(textBox3.Text);
MessageBox.Show("Silindi.");
dataGridView1.DataSource = nesne.tumKayitlar();
}
private void button3_Click(object sender, EventArgs e)
{
Enginee nesne = new rfidbit.Enginee();
dataGridView1.DataSource = nesne.tumKayitlar();
}