Parameters

prefix

The prefix whose namespace URI you want to resolve. To match the default namespace, pass an empty string.

Returns

The namespace URI to which the prefix maps or null if no matching prefix is found.

Remarks

In the following XML string, if the reader is positioned on the href attribute, the prefix a is resolved by calling reader.LookupNamespace("a"). The returned string is urn:456.

Example

<root xmlns:a="urn:456">
  <item>
  <ref href="a:b"/>
  </item>
 </root>

Requirements