private void OnbtnQuanLyDichVu_MouseClick(object sender, MouseEventArgs e)
{
if (!IsOpened("frmQuanLyDichVu"))
{
frmQuanLyDichVu quanlydichvu = new frmQuanLyDichVu();
quanlydichvu.MdiParent = this;
quanlydichvu.Name = "frmQuanLyDichVu";
quanlydichvu.Show();
}
}
private void btDichVu_Click(object sender, EventArgs e)
{
frmQuanLyDichVu frmQLDichVu = new frmQuanLyDichVu();
frmQLDichVu.Show();
}