/// <summary> /// 根据条码精确查找 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void FindByCode(object sender, EventArgs e) { string code = textBox3.Text; if ("" == code) { MessageBox.Show("条码为空!"); return; } Book book = new Book(); book.bkCode = code; resultTable = BookDAL.FindByKeyword(book); dataGridView1.DataSource = resultTable; }