private void goc_listeleme_Click(object sender, EventArgs e)
{
goc_guncelleme_ekrani frm = new goc_guncelleme_ekrani();
frm.Show();
this.Hide();
}
private void don_btn_Click(object sender, EventArgs e)
{
goc_guncelleme_ekrani formkapa = new goc_guncelleme_ekrani();
formkapa.Close();
guncelleme_form_ekranı form = new guncelleme_form_ekranı();
form.Show();
this.Hide();
}