HasAttribute Method (String)
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XmlElement.HasAttribute Method (String)

Determines whether the current node has an attribute with the specified name.

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

public virtual bool HasAttribute (
	string name
)
public boolean HasAttribute (
	String name
)
public function HasAttribute (
	name : String
) : boolean
Not applicable.

Parameters

name

The name of the attribute to find. This is a qualified name. It is matched against the Name property of the matching node.

Return Value

true if the current node has the specified attribute; otherwise, false.

The following example checks to see if the element has the specified attribute.

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

public class Sample
{
  public static void Main()
  {

    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" +
                "<title>Pride And Prejudice</title>" +
                "</book>");

    XmlElement root = doc.DocumentElement;

    // Check to see if the element has a genre attribute.
    if (root.HasAttribute("genre")){
      String genre = root.GetAttribute("genre");
      Console.WriteLine(genre);
   }

  }
}

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

public class Sample
{
    public static void main(String[] args)
    {
        XmlDocument doc = new XmlDocument();
        doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" 
            + "<title>Pride And Prejudice</title>"
            + "</book>");

        XmlElement root = doc.get_DocumentElement();

        // Check to see if the element has a genre attribute.
        if (root.HasAttribute("genre")) {
            String genre = root.GetAttribute("genre");
            Console.WriteLine(genre);
        }
    } //main
} //Sample 

Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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