private void itemPerson_Click(object sender, EventArgs e)
{
FormPerson formperson = new FormPerson();
formperson.MdiParent = this;
formperson.Show();
}
private void itemSettingPersonAll_Click(object sender, EventArgs e)
{
FormPerson form = new FormPerson();
form.MdiParent = this;
form.Show();
}