private void button_lienhe_Click(object sender, EventArgs e)
{
if (formLienhe == null || formLienhe.IsDisposed)
{
formLienhe = new LienHe();
formLienhe.MdiParent = this;
formLienhe.Show();
}
else
{
formLienhe.Activate();
}
}
private void bar_lienhe_LinkClicked(object sender, DevExpress.XtraNavBar.NavBarLinkEventArgs e)
{
if (formLienhe == null || formLienhe.IsDisposed)
{
formLienhe = new LienHe();
formLienhe.MdiParent = this;
formLienhe.Show();
}
else
{
formLienhe.Activate();
}
}