private void btnThoat_Click(object sender, EventArgs e) { FormTimDocGia_MuonTra tk = new FormTimDocGia_MuonTra(); this.Hide(); tk.Show(); }
private void button3_Click(object sender, EventArgs e) { FormTimDocGia_MuonTra f = new FormTimDocGia_MuonTra(); f.Show(); Hide(); }