private void participantDataGridView_MouseDoubleClick(object sender, MouseEventArgs e)
{
int index = Int32.Parse(this.participantDataGridView.CurrentRow.Cells["num"].Value.ToString());
ParticipantForm partForm = new ParticipantForm(index);
partForm.ShowDialog();
}
private void button2_Click(object sender, EventArgs e)
{
var form = new ParticipantForm();
var result = form.ShowDialog(this);
if (result == DialogResult.OK)
{
listBox1.Items.Add(form.Data);
}
}