Kết nối bằng quyền Windows: string m_ConnectString = “Data Source=” + “servername” + “;Initial Catalog=” + “databasename” + “;Integrated Security=True;”; Kết nối bằng quyền User: string m_ConnectString = “Data Source=” + “servername” + “;Initial Catalog=” + “databasename” + “;User Id=” + “username” + “;Password=” + “pasword” + “;”; Nosomovo