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XmlElement.RemoveAttribute Method (String, String)

Removes an attribute with the specified local name and namespace URI. (If the removed attribute has a default value, it is immediately replaced).

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

public virtual void RemoveAttribute(
	string localName,
	string namespaceURI
)

Parameters

localName
Type: System.String

The local name of the attribute to remove.

namespaceURI
Type: System.String

The namespace URI of the attribute to remove.

ExceptionCondition
ArgumentException

The node is read-only.

If the removed attribute is known to have a default value, an attribute immediately appears containing the default value and, if applicable, the corresponding namespace URI, local name, and prefix.

The following example removes an attribute from an element.

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

public class Sample
{
  public static void Main()
  {

    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<book xmlns:bk='urn:samples' bk:ISBN='1-861001-57-5'>" +
                "<title>Pride And Prejudice</title>" +
                "</book>");

    XmlElement root = doc.DocumentElement;

    // Remove the ISBN attribute.
    root.RemoveAttribute("ISBN", "urn:samples");

    Console.WriteLine("Display the modified XML...");
    Console.WriteLine(doc.InnerXml);

  }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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