private void TxtPolikinlik_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
int siraNo = Convert.ToInt32(Veritabani.SiraNoVer(txtPolikinlik.Text, txtSevkTarihi.Text));
siraNo++;
txtSiraNo.Text = siraNo.ToString();
}
catch (Exception a)
{
MessageBox.Show("Bir hata oluştu:" + a.Message, "UYARI", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}