private void button1_Click(object sender, EventArgs e)
{
HappyBirthday hb = new HappyBirthday();
MessageBox.Show(hb.getmessage("happy birthday!"));
this.Close();
}
private void button1_Click(object sender, EventArgs e)
{
HappyBirthday hb = new HappyBirthday();
MessageBox.Show("happy Birthday " + txtfname.Text + " " + txtlname.Text);
}