private void btn_show_khoa_Click(object sender, EventArgs e) { try { BLL_Khoa bll_khoa = new BLL_Khoa(); dataGridView2.DataSource = bll_khoa.Show(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void btn_add_khoa_Click(object sender, EventArgs e) { try { BLL_Khoa bll_khoa = new BLL_Khoa(); Khoa khoa = new Khoa() { ID_Khoa = txt_ID_Khoa.Text, Name_Khoa = txt_Name_Khoa.Text }; bll_khoa.Add(khoa); dataGridView2.DataSource = bll_khoa.Show(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }