private void viewUsersToolStripMenuItem_Click(object sender, EventArgs e)
{
if (v == null)
{
ViewUsers v = new ViewUsers();
v.FormClosed += V_FormClosed;
v.MdiParent = this;
v.Show();
}
else
{
v.Activate();
}
}
private void V_FormClosed(object sender, FormClosedEventArgs e)
{
v = null;
//throw new NotImplementedException();
}