private void btnGuest_Click(object sender, EventArgs e)
{
this.Hide();
ParticpantView openInstance = new ParticpantView();
openInstance.ShowDialog();
Environment.Exit(0);
}
private void btnUser_Click(object sender, EventArgs e)
{
// Opens the participants registration form.
this.Hide();
ParticpantView openInstance = new ParticpantView();
openInstance.ShowDialog();
Environment.Exit(0);
}