IXmlNamespaceResolver.LookupNamespace Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Gets the namespace URI mapped to the specified prefix.
Assembly: System.Xml (in System.Xml.dll)
Parameters
- prefix
- Type: System.String
The prefix whose namespace URI you wish to find.
Return Value
Type: System.StringThe namespace URI that is mapped to the prefix; null if the prefix is not mapped to a namespace URI.
Note: |
|---|
Namespace URI-to-prefix mappings can change from node to node in an XML document. You cannot depend on the result of a lookup being consistent from one node to the next. |
The following table describes how the default and built-in namespaces are handled by the LookupNamespace method.
Prefix | Return Value |
|---|---|
xml | http://www.w3.org/XML/1998/namespace |
xmlns | http://www.w3.org/2000/xmlns/ |
String.Empty (A default namespace has been assigned). | The currently assigned default namespace. |
String.Empty (The default namespace has not been explicitly assigned). | String.Empty (The blank prefix is associated with elements that are not in any namespace). |
Note: