请高手看看关于DataSet类型化数据集的创建问题

[evilcry2013]

读别人代码有一个DataSetBook类，和DataSet数据集有关系，有很多代码，请问怎么产生的呢？
一下是部分解答的帖子 http://bbs.csdn.net/topics/390345420

DataSetBook.cs这个文件的代码如何生成，它有什么意义

//------------------------------------------------------------------------------
// <autogenerated>
// This code was generated by a tool.
// Runtime Version: 1.1.4322.573
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </autogenerated>
//------------------------------------------------------------------------------

namespace Library {
using System;
using System.Data;
using System.Xml;
using System.Runtime.Serialization;


[Serializable()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Diagnostics.DebuggerStepThrough()]
[System.ComponentModel.ToolboxItem(true)]
public class DataSetBook : DataSet {

private BookDataTable tableBook;

public DataSetBook() {
this.InitClass();
System.ComponentModel.CollectionChangeEventHandler schemaChangedHandler = new System.ComponentModel.CollectionChangeEventHandler(this.SchemaChanged);
this.Tables.CollectionChanged += schemaChangedHandler;
this.Relations.CollectionChanged += schemaChangedHandler;
}
.....略