private void tileBarItem2_ItemClick(object sender, TileItemEventArgs e)
{
Form_Login frm = new Form_Login();
frm.Show();
this.Dispose();
}
private void barButtonItem8_ItemClick(object sender, ItemClickEventArgs e)
{
ca.clearCard();
ca.clearCard2();
this.Dispose();
Form_Login lg = new Form_Login();
lg.Show();
}
private void đăngNhậpToolStripMenuItem1_Click(object sender, EventArgs e)
{
Form_Login lg = new Form_Login();
lg.Show();
}