private void lblmanagerubrics_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
Rubric s = new Rubric();
s.Show();
this.Hide();
}
/// <summary>
/// link label for Rubric form.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void linkLabel3_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
Rubric r = new Rubric();
r.Show();
this.Hide();
}