private void btnTimkiem_Click(object sender, EventArgs e) { DataSet ds; dt = new DataTable(); dt.Clear(); if (rdonxs.Checked == true) { NSX = DateTime.Parse(txtTimkiem.Text).ToString("yyyy-MM-dd"); ds = db.TimkiemTheoNSX(NSX); } else { if (rdohsd.Checked == true) { HSD = DateTime.Parse(txtTimkiem.Text).ToString("yyyy-MM-dd"); ds = db.TimkiemTheoHSD(HSD); } else { ds = db.TimkiemTheoTENSP(txtTimkiem.Text); } } dt = ds.Tables[0]; dgvTimKho.DataSource = dt; dgvTimKho.AutoResizeColumns(); }