private void inHướngDẫnĐánhPháchToolStripMenuItem_Click(object sender, EventArgs e)
{
if (!CheckExitsFrom("FrmInHDDanhPhach"))
{
FrmInHDDanhPhach fm = new FrmInHDDanhPhach();
fm.MdiParent = this;
fm.Show();
}
else ActiveChildForm("FrmInHDDanhPhach");
}
private void btnInHdDanhPhach_Click(object sender, EventArgs e)
{
FrmInHDDanhPhach f = new FrmInHDDanhPhach();
f.Show();
}