private void button1_Click(object sender, EventArgs e) { BenhNhanBUS bus = new BenhNhanBUS(); if (bus.create(new BenhNhanDTO( id: 0, hoTen: "Vo van dattttttt", gioiTinh: "Nam", namSinh: 2001, diaChi: "Quan blablabla" ))) { MessageBox.Show("Them thanh cong"); } else { MessageBox.Show("Them That bai"); } }