XmlNodeReader.ReadAttributeValue Method

public string ReadAttributeValue()

Summary

Reads the attribute value and returns it as a string.

Returns

  • A string containing the attribute value.

Remarks

This method is used to retrieve the value of an attribute when the current node is an attribute. It returns the value as a plain string, resolving any entity references.

If the current node is not an attribute, the behavior of this method is undefined, and it may throw an exception or return an unexpected result.

Example

The following example demonstrates how to use the ReadAttributeValue method to read attribute values from an XML document using XmlNodeReader.


using System;
using System.Xml;

public class Example
{
    public static void Main(string[] args)
    {
        string xmlString = @"
            <root xmlns:myprefix='http://example.com/ns' myattribute='somevalue'>
                <element attribute2=""another"">Content</element>
            </root>";

        XmlDocument doc = new XmlDocument();
        doc.LoadXml(xmlString);

        XmlNodeReader reader = new XmlNodeReader(doc.DocumentElement);

        while (reader.Read())
        {
            if (reader.NodeType == XmlNodeType.Attribute)
            {
                Console.WriteLine($"Attribute Name: {reader.Name}");
                Console.WriteLine($"Attribute Value: {reader.ReadAttributeValue()}");
            }
            else if (reader.NodeType == XmlNodeType.Element && reader.HasAttributes)
            {
                Console.WriteLine($"Element: {reader.Name}");
                for (int i = 0; i < reader.AttributeCount; i++)
                {
                    reader.MoveToAttribute(i);
                    Console.WriteLine($"  Attribute Name: {reader.Name}");
                    Console.WriteLine($"  Attribute Value: {reader.Value}");
                }
                reader.MoveToElement(); // Move back to the element node
            }
        }
    }
}

See Also