private void editUsersToolStripMenuItem_Click(object sender, EventArgs e)
{
if (eu == null)
{
EditUsers eu = new EditUsers();
eu.FormClosed += Eu_FormClosed;
eu.MdiParent = this;
eu.Show();
}
else
{
eu.Activate();
}
}
private void Eu_FormClosed(object sender, FormClosedEventArgs e)
{
eu = null;
//throw new NotImplementedException();
}