private void timKiem() { // get text string value = txtTimKiem.Text; if (value.Length == 0) { loadDuLieu(); return; } dgvDanhSach.Rows.Clear(); DataTable dt = KhachHangControl.timKiem(value); for (int i = 0; i < dt.Rows.Count; ++i) { dgvDanhSach.Rows.Add(new object[] { false, dt.Rows[i][0], dt.Rows[i][1], dt.Rows[i][2], dt.Rows[i][3] }); } }