private void frmchiacav2_Load(object sender, EventArgs e) { try { DAOCa ca = new DAOCa(); DataTable DanhSachCa = ca.getDanhSachCaDeChiaCa(); DanhSachCa.Columns.Add("Check", typeof(bool)); dataGridView3.DataSource = DanhSachCa; DAONhanVien nv = new DAONhanVien(); DataTable DanhSachNhanVien = nv.getNhanVienDeChiaCa(); DanhSachNhanVien.Columns.Add("Check", typeof(bool)); dataGridView1.DataSource = DanhSachNhanVien; DAOChiaca cc = new DAOChiaca(); dataGridView2.DataSource = cc.getDanhSachChiaCaFrmChiaCa(); } catch { } }