How to Correctly Handle Namespaces and Prefixes When Creating XML Documents with XElement?

XElement Namespaces: A Comprehensive Guide

Creating XML Documents with Node Prefixes

When constructing XML documents using XElement, it's crucial to handle namespace prefixes correctly. Attempting to create an element with a prefix directly, e.g., new XElement("sphinx:docset"), will result in an exception.

Solution Using Namespace

LINQ to XML provides an elegant solution for this:

XNamespace ns = "sphinx";
XElement element = new XElement(ns + "docset");

This approach appends the namespace to the element name, ensuring the presence of the desired prefix.

Customizing Prefixes

You can also customize the prefix to match your existing XML structure:

XNamespace ns = "http://url/for/sphinx";
XElement element = new XElement("container",
    new XAttribute(XNamespace.Xmlns + "sphinx", ns),
    new XElement(ns + "docset",
        new XElement(ns + "schema"),
            new XElement(ns + "field", new XAttribute("name", "subject")),
            new XElement(ns + "field", new XAttribute("name", "content")),
            new XElement(ns + "attr",
                         new XAttribute("name", "published"),
                         new XAttribute("type", "timestamp"))));

This code generates XML that resembles your provided example:

<container xmlns:sphinx="http://url/for/sphinx">
  <sphinx:docset>
    <sphinx:schema />
    <sphinx:field name="subject" />
    <sphinx:field name="content" />
    <sphinx:attr name="published" type="timestamp" />
  </sphinx:docset>
</container>

The above is the detailed content of How to Correctly Handle Namespaces and Prefixes When Creating XML Documents with XElement?. For more information, please follow other related articles on the PHP Chinese website!