Until now, you''''ve seen the pieces required to implement disconnected data managment.  What you really need is to see all this implemented in an application.  Listing 1 shows how the code from all the previous sections is used in a working program that has been simplified to enhance the points of this lesson:

直到现在，你看到的代码片断需要实现断开数据管理。你真正需要的看看所有这些在一个应用程序如何实现。Listing1展示了从前面的代码断如何在程序中运作的，它已经简要的增强了本课的重点：

Listing 1: Implementing a Disconnected Data Management Strategy

using System;

using System.Data;

using System.Data.SqlClient;

using System.Drawing;

using System.Windows.Forms;

class DisconnectedDataForm : Form

{

        private SqlConnection  conn;

        private SqlDataAdapter daCustomers;

        private DataSet  dsCus

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