c++ builder 中的 XMLDocument 类详解(8) -添加与删除结点

来源：互联网发布：蓝月传奇附灵数据编辑：程序博客网时间：2024/05/29 09:21

//---------------------------------------------------------------------------
  
#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>
//---------------------------------------------------------------------------
classTForm1 : publicTForm 
{ 
__published:    // IDE-managed Components 
    TMemo *Memo1;
    TButton *btn_1;
    TButton *btn_2;
    TXMLDocument *XMLDocument1;
    TButton *btn_3;
    void__fastcall FormCreate(TObject *Sender); 
    void__fastcall btn_1Click(TObject *Sender); 
    void__fastcall btn_2Click(TObject *Sender); 
    void__fastcall btn_3Click(TObject *Sender); 
private:   // User declarations 
public:    // User declarations 
    __fastcall TForm1(TComponent* Owner);
}; 
//---------------------------------------------------------------------------
externPACKAGE TForm1 *Form1; 
//---------------------------------------------------------------------------
#endif

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//---------------------------------------------------------------------------
  
#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");
    Memo1->Lines=XMLDocument1->XML;
} 
//---------------------------------------------------------------------------
  
void__fastcall TForm1::btn_1Click(TObject *Sender) 
{ 
    //添加
  
    _di_IXMLNode newNode,newNodeAdd;
  
    //在根目录下增加新的结点，结点名称为"人员"
    newNode=XMLDocument1->DocumentElement->AddChild("人员");
    //给人员这一结点增加“职务”属性，注意此处的要转为widestring型
    newNode->Attributes["职务"]=WideString("秘书");
  
    //..........
    newNodeAdd=newNode->AddChild("姓名");
    newNodeAdd->Text="小翠";
  
    //..........
    newNodeAdd=newNode->AddChild("性别");
    newNodeAdd->Text="女";
  
    Memo1->Lines=XMLDocument1->XML;
    /*在尾部增加
      <人员 职务="秘书">
          <姓名>小翠</姓名>
          <性别>女</性别>
      </人员>
   */
} 
//---------------------------------------------------------------------------
  
void__fastcall TForm1::btn_2Click(TObject *Sender) 
{ 
    //删除
  
    _di_IXMLNodeList nodeList;
  
    nodeList=XMLDocument1->DocumentElement->ChildNodes;
    nodeList->Delete(nodeList->Count-1);//删除最后一条
  
    Memo1->Lines=XMLDocument1->XML;//查看
} 
//---------------------------------------------------------------------------
  
void__fastcall TForm1::btn_3Click(TObject *Sender) 
{ 
    Memo1->Clear();
} 
//---------------------------------------------------------------------------

出处：http://www.cnblogs.com/zhangdongsheng/

作者：张东升 QQ:290387340

本博客注有“转”字样的为转载文章，其余为本人原创文章，转载请务必注明出处或保存此段。欢迎交流c++ 编程技术 QQ:290387340

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