private void generateKeysForm_ChangePublicExponent(object sender, EventArgs e) { using (var form = formFactory.CreatePublicExponentForm()) { form.SetPublicExponents(new[] { 3, 17, 257, 65537 }); form.PublicExponent = options.PublicExponent; if (form.ShowDialog() == DialogResult.OK) { options.PublicExponent = form.PublicExponent; RefreshPublicExponent(); } } }