private void thôngTinLoạiPhòngToolStripMenuItem_Click(object sender, EventArgs e)
{
FormRoom form = new FormRoom();
form.a = 0;
form.ShowDialog();
}
private void danhSáchPhòngToolStripMenuItem_Click(object sender, EventArgs e)
{
FormRoom formroom = new FormRoom();
formroom.ShowDialog();
}