IXmlNamespaceResolver.LookupNamespace(String) Method
Definition
Important
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Gets the namespace URI mapped to the specified prefix.
public:
System::String ^ LookupNamespace(System::String ^ prefix);
public string LookupNamespace (string prefix);
public string? LookupNamespace (string prefix);
abstract member LookupNamespace : string -> string
Public Function LookupNamespace (prefix As String) As String
Parameters
- prefix
- String
The prefix whose namespace URI you wish to find.
Returns
The namespace URI that is mapped to the prefix; null
if the prefix is not mapped to a namespace URI.
Remarks
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). |
Applies to
.NET
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