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XmlTextReader.IsEmptyElement Property

.NET Framework 2.0

Other Versions

Gets a value indicating whether the current node is an empty element (for example, <MyElement/>).

Namespace: System.Xml
Assembly: System.Xml (in system.xml.dll)

Syntax

C++

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public override bool IsEmptyElement { get; }

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/** @property */
public boolean get_IsEmptyElement ()

JScript

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public override function get IsEmptyElement () : boolean

Property Value

true if the current node is an element (NodeType equals XmlNodeType.Element) that ends with />; otherwise, false.

Remarks

Note
In the Microsoft .NET Framework version 2.0 release, the recommended practice is to create XmlReader instances using the System.Xml.XmlReader.Create method. This allows you to take full advantage of the new features introduced in this release. For more information, see Creating XML Readers.

This property enables you to determine the difference between the following:

<item num="123"/> (IsEmptyElement is true).

<item num="123"> (IsEmptyElement is false, although element content is empty).

A corresponding EndElement node is not generated for empty elements.

IsEmptyElement simply reports whether or not the element in the source document had an end element tag.

Example

The following example displays the text content of each element.

C++

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using System;
using System.IO;
using System.Xml;

public class Sample 
{
  public static void Main()
  {
    XmlTextReader reader = null;

    try
    {
       //Load the reader with the XML file.
       reader = new XmlTextReader("elems.xml");
  
       //Parse the XML and display the text content of each of the elements.
       while (reader.Read()){
         if (reader.IsStartElement()){
           if (reader.IsEmptyElement)
              Console.WriteLine("<{0}/>", reader.Name);
           else{
               Console.Write("<{0}> ", reader.Name);
               reader.Read(); //Read the start tag.
               if (reader.IsStartElement())  //Handle nested elements.
                 Console.Write("\r\n<{0}>", reader.Name);
               Console.WriteLine(reader.ReadString());  //Read the text content of the element.
           }
         }
       } 
       
     } 

     finally 
     {
        if (reader != null)
          reader.Close();
      }
  }
  
} // End class

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import System.*;
import System.IO.*;
import System.Xml.*;

public class Sample
{
    public static void main(String[] args)
    {
        XmlTextReader reader = null;
        try {
            //Load the reader with the XML file.
            reader = new XmlTextReader("elems.xml");
            
            //Parse the XML and display the text content of each of the elements
            while (reader.Read()) {
                if (reader.IsStartElement()) {
                    if (reader.get_IsEmptyElement()) {
                        Console.WriteLine("<{0}/>", reader.get_Name());
                    }
                    else {
                        Console.Write("<{0}> ", reader.get_Name());
                        reader.Read(); //Read the start tag.
                        if (reader.IsStartElement()) { //Handle nested elements.
                            Console.Write("\r\n<{0}>", reader.get_Name());
                        }
                        //Read the text content of the element.
                        Console.WriteLine(reader.ReadString()); 
                    }
                }
            }
        }     
        finally {
            if (reader != null) {
                reader.Close();
            }
        }
    } //main
} //End class Sample

The example uses the file, elems.xml, as input.

None

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<book>
  <title>Pride And Prejudice</title>
  <price>19.95</price>
  <misc/>
</book>

Platforms

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

Version Information

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

Reference

XmlTextReader Class
XmlTextReader Members
System.Xml Namespace

Other Resources

Reading XML with the XmlReader

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