C++ builder 中的 XMLDocument 类详解(16) – 前一个节点、后一个节点和父节点

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#ifndef Unit1H

#define Unit1H

//---------------------------------------------------------------------------

#include <Classes.hpp>

#include <Controls.hpp>

#include <StdCtrls.hpp>

#include <Forms.hpp>

#include <msxmldom.hpp>

#include <XMLDoc.hpp>

#include <xmldom.hpp>

#include <XMLIntf.hpp>

//---------------------------------------------------------------------------

class TForm1 : public TForm

{

__published:	// IDE-managed Components

    TXMLDocument *XMLDocument1;

    TButton *Button1;

    void __fastcall FormCreate(TObject *Sender);

    void __fastcall Button1Click(TObject *Sender);

private:	// User declarations

public:		// User declarations

    __fastcall TForm1(TComponent* Owner);

};

//---------------------------------------------------------------------------

extern PACKAGE TForm1 *Form1;

//---------------------------------------------------------------------------

#endif

//---------------------------------------------------------------------------



#include <vcl.h>

#pragma hdrstop



#include "Unit1.h"

//---------------------------------------------------------------------------

#pragma package(smart_init)

#pragma resource "*.dfm"

TForm1 *Form1;

//---------------------------------------------------------------------------

__fastcall TForm1::TForm1(TComponent* Owner)

    : TForm(Owner)

{

}

//---------------------------------------------------------------------------





void __fastcall TForm1::FormCreate(TObject *Sender)

{

    XMLDocument1->LoadFromFile("D:\\code\\B_C_B\\XMLDocument\\test.xml");

}

//---------------------------------------------------------------------------



void __fastcall TForm1::Button1Click(TObject *Sender)

{

//    _di_IXMLNodeList nodeList;

    _di_IXMLNode node,nodeX;



    node=XMLDocument1->DocumentElement;

    node=node->ChildNodes->Nodes[1];

    node=node->ChildNodes->Nodes[1];

 //   现在node结点指向了我们的例子中第二个人员"李四"



    ShowMessage(node->NodeValue);//女



    //获取该节点的上一个节点，它上一个结点应该是李四的姓名

    nodeX=node->PreviousSibling();

    ShowMessage(nodeX->NodeValue);





    //get the next node,maybe is LISI'age

    nodeX=node->NextSibling();

    ShowMessage(nodeX->NodeValue);//43



    //get this node'parent node

    nodeX=node->ParentNode;

    ShowMessage(nodeX->NodeName);//ren yuan

}

//---------------------------------------------------------------------------