private void button2_Click(object sender, EventArgs e)
{
grpbuton.Visible = false;
TambahAlat TA = new TambahAlat();
TA.ShowDialog();
}
//menampilkan form tambah
private void BtnTambah_Click(object sender, EventArgs e)
{
TambahAlat ta = new TambahAlat();
ta.ShowDialog();
}