public void ResetForm()
{
this.pnlChucNang.Controls.Clear();
tra = new TraDia(this);
ThemGiaiDoan(tra);
ShowForm();
}
private void trảĐĩaToolStripMenuItem_Click(object sender, EventArgs e)
{
TraDia frmTraDia = new TraDia();
foreach (Form frm in MdiChildren)
{
frm.Close();
}
frmTraDia.MdiParent = this;
frmTraDia.Show();
}