private void btnTim_Click(object sender, EventArgs e) { frmTimKiemNV frmTKNV = new frmTimKiemNV(); frmTKNV.ShowDialog(); value = frmTKNV.getStr; DataTable tblNV = new DataTable(); tblNV = BLL.show1NV(value); dgvNhanVien.DataSource = tblNV; hienThi(); }