private void textBox1_TextChanged(object sender, EventArgs e) { if (cardnumber_textbox.Text.Length == 16 && hanyszor == 1 || cardnumber_textbox.Text.Length == 15 && hanyszor == 1) { hanyszor += 1; kiír(); CCV_label.Text = gen.CVV(cardnumber_textbox.Text); } }
private void textBox1_TextChanged(object sender, EventArgs e) { kiír(); CCV_label.Text = gen.CVV(cardnumber_textbox.Text); }