Author: coder

Calling the Only Nodes Prototype

Posted on by coder 
   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XDocument xDocument = new XDocument(
         new XElement("Books",
           new XElement("Book",
            new XAttribute("type", "Author"),
           new XComment("This is a new author."),
            new XElement("FirstName", "A"),
           new XElement("LastName", "B")),
           new XElement("Book",
            new XAttribute("type", "Author"),
           new XElement("FirstName", "C"),
           new XElement("LastName", "D"))));

        IEnumerable<XElement> elements = xDocument.Element("Books").Elements("Book");
        foreach (XElement element in elements) {
            Console.WriteLine("Source element: {0} : value = {1}", element.Name, element.Value);
        }
        foreach (XNode node in elements.Nodes()) {
            Console.WriteLine("Child node: {0}", node);
        }
    }
}

Calling the Only InDocumentOrder Prototype

Posted on by coder 
   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XDocument xDocument = new XDocument(
         new XElement("Books",
           new XElement("Book",
            new XAttribute("type", "Author"),
           new XComment("This is a new author."),
            new XElement("FirstName", "A"),
           new XElement("LastName", "B")),
           new XElement("Book",
            new XAttribute("type", "Author"),
           new XElement("FirstName", "C"),
           new XElement("LastName", "D"))));
        IEnumerable<XNode> nodes = xDocument.Element("Books").Elements("Book").Nodes().Reverse();
        foreach (XNode node in nodes) {
            Console.WriteLine("Source node: {0}", node);
        }
        foreach (XNode node in nodes.InDocumentOrder()) {
            Console.WriteLine("Ordered node: {0}", node);
        }
    }
}

XObject Event Handling Using Lambda Expressions

Posted on by coder 
   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XElement firstParticipant;

        XDocument xDocument = new XDocument(
          new XElement("Books", firstParticipant =
            new XElement("Book",
              new XAttribute("type", "Author"),
              new XElement("FirstName", "J"),
              new XElement("LastName", "R")),
            new XElement("Book",
              new XAttribute("type", "Author"),
              new XElement("FirstName", "E"),
              new XElement("LastName", "B"))));

        Console.WriteLine("{0}{1}", xDocument, System.Environment.NewLine);

        firstParticipant.Changing += new EventHandler<XObjectChangeEventArgs>(
          (object sender, XObjectChangeEventArgs cea) =>
            Console.WriteLine("Type of object changing: {0}, Type of change: {1}",
              sender.GetType().Name, cea.ObjectChange));

        firstParticipant.Changed += (object sender, XObjectChangeEventArgs cea) =>
          Console.WriteLine("Type of object changed: {0}, Type of change: {1}",
            sender.GetType().Name, cea.ObjectChange);

        xDocument.Changed += (object sender, XObjectChangeEventArgs cea) =>
          Console.WriteLine("Doc: Type of object changed: {0}, Type of change: {1}{2}",
            sender.GetType().Name, cea.ObjectChange, System.Environment.NewLine);


        firstParticipant.Element("FirstName").Value = "Seph";

        Console.WriteLine("{0}{1}", xDocument, System.Environment.NewLine);
    }
}

XObject Event Handling

Posted on by coder 
   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XElement firstParticipant;

        XDocument xDocument = new XDocument(
          new XElement("Books", firstParticipant =
            new XElement("Book",
              new XAttribute("type", "Author"),
              new XElement("FirstName", "J"),
              new XElement("LastName", "R")),
            new XElement("Book",
              new XAttribute("type", "Author"),
              new XElement("FirstName", "E"),
              new XElement("LastName", "B"))));

        Console.WriteLine(xDocument);
        firstParticipant.Changing += new
        EventHandler<XObjectChangeEventArgs>(MyChangingEventHandler);
        firstParticipant.Changed += new
        EventHandler<XObjectChangeEventArgs>(MyChangedEventHandler);
        xDocument.Changed += new
        EventHandler<XObjectChangeEventArgs>(DocumentChangedHandler);

    }
    public static void MyChangingEventHandler(object sender, XObjectChangeEventArgs cea)
    {
      Console.WriteLine("Type of object changing: {0}, Type of change: {1}",
        sender.GetType().Name, cea.ObjectChange);
    }


    public static void MyChangedEventHandler(object sender, XObjectChangeEventArgs cea)
    {
      Console.WriteLine("Type of object changed: {0}, Type of change: {1}",
        sender.GetType().Name, cea.ObjectChange);
    }


    public static void DocumentChangedHandler(object sender, XObjectChangeEventArgs cea)
    {
      Console.WriteLine("Doc: Type of object changed: {0}, Type of change: {1}{2}",
        sender.GetType().Name, cea.ObjectChange, System.Environment.NewLine);
    }    
}

Traversing Forward from the Current Node Using the ElementsAfterSelf Method

Posted on by coder 
   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XElement firstParticipant;
        XDocument xDocument = new XDocument(
         new XDeclaration("1.0", "UTF-8", "yes"),
       new XDocumentType("Books", null, "Books.dtd", null),
       new XProcessingInstruction("Book", "out-of-print"),
       new XElement("Books",
      new XComment("Begin Of List"), firstParticipant =
       new XElement("Book",
       new XAttribute("type", "Author"),
       new XElement("FirstName", "J"),
       new XElement("LastName", "R")),
       new XElement("Book",
       new XAttribute("type", "Author"),
       new XElement("FirstName", "E"),
       new XElement("LastName", "B")),
       new XComment("End Of List")));
        foreach (XNode node in firstParticipant.ElementsAfterSelf()) {
            Console.WriteLine(node);
        }
    }
}

Calling the Second Elements Prototype

Posted on by coder 
   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XDocument xDocument = new XDocument(
         new XElement("Books",
           new XElement("Book",
            new XAttribute("type", "Author"),
           new XComment("This is a new author."),
            new XElement("FirstName", "A"),
           new XElement("LastName", "B")),
           new XElement("Book",
            new XAttribute("type", "Author"),
           new XElement("FirstName", "C"),
           new XElement("LastName", "D"))));

        IEnumerable<XElement> elements = xDocument.Element("Books").Elements("Book");
        foreach (XElement element in elements) {
            Console.WriteLine("Source element: {0} : value = {1}", element.Name, element.Value);
        }
        foreach (XElement element in elements.Elements("LastName")) {
            Console.WriteLine("Child element: {0}", element);
        }
    }
}

Calling the First Elements Prototype

Posted on by coder 
   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XDocument xDocument = new XDocument(
         new XElement("Books",
           new XElement("Book",
            new XAttribute("type", "Author"),
           new XComment("This is a new author."),
            new XElement("FirstName", "A"),
           new XElement("LastName", "B")),
           new XElement("Book",
            new XAttribute("type", "Author"),
           new XElement("FirstName", "C"),
           new XElement("LastName", "D"))));

        IEnumerable<XElement> elements = xDocument.Element("Books").Elements("Book");
        foreach (XElement element in elements) {
            Console.WriteLine("Source element: {0} : value = {1}", element.Name, element.Value);
        }
        foreach (XElement element in elements.Elements()) {
            Console.WriteLine("Child element: {0}", element);
        }

    }
}