XmlDocument Event : XmlDocument : XML C# Examples


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XmlDocument Event









    
using  System;
using  System.Drawing;
using  System.Collections;
using  System.ComponentModel;
using  System.Windows.Forms;
using  System.Data;
using  System.Xml;

public  class  MainClass{
        public  static  void  Main()  {
        XmlDocument  xmlDoc  =  new  XmlDocument();
        xmlDoc.LoadXml("<Record>  Some  Value  </Record>");

        //Create  the  event  handlers.
        xmlDoc.NodeChanged  +=  new  XmlNodeChangedEventHandler(MyNodeChangedEvent);
        xmlDoc.NodeInserted  +=new  XmlNodeChangedEventHandler(MyNodeInsertedEvent);
        xmlDoc.NodeRemoved  +=  new  XmlNodeChangedEventHandler(MyNodeRemovedEvent);

    
        XmlElement  root  =  xmlDoc.DocumentElement;
        string  str  =  root.ToString();

        XmlDocumentFragment  xmlDocFragment  =  xmlDoc.CreateDocumentFragment();
        xmlDocFragment.InnerXml="<F><S>Data</S></F>";
        
        XmlElement  rootNode  =  xmlDoc.DocumentElement;      
        rootNode.ReplaceChild(xmlDocFragment,  rootNode.LastChild);

        XmlNode  node  =  xmlDoc.LastChild;
        xmlDoc.RemoveChild(node);

    }

    public  static  void  MyNodeChangedEvent(Object  src,  XmlNodeChangedEventArgs  args)
    {
        Console.WriteLine("Node  Changed  Event  Fired  for  node  "+  args.Node.Name);
        if  (args.Node.Value  !=  null)
        {
            Console.WriteLine(args.Node.Value);
        }                      
    }

    public  static  void  MyNodeInsertedEvent(Object  src,  XmlNodeChangedEventArgs  args)
    {
        Console.WriteLine("Node  Inserted  Event  Fired  for  node  "+  args.Node.Name);
        if  (args.Node.Value  !=  null)
        {
            Console.WriteLine(args.Node.Value);
        }              
    }

    public  static  void  MyNodeRemovedEvent(Object  src,  XmlNodeChangedEventArgs  args){
        Console.WriteLine("Node  Removed  Event  Fired  for  node  "+  args.Node.Name);
        if  (args.Node.Value  !=  null)
        {
            Console.WriteLine(args.Node.Value);
        }              
    }
}
    
   
  
   



Output

Node Inserted Event Fired for node S
Node Inserted Event Fired for node #text
Data
Node Inserted Event Fired for node F
Node Removed Event Fired for node #text
 Some Value
Node Removed Event Fired for node F
Node Inserted Event Fired for node F
Node Removed Event Fired for node Record


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