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XmlNodeReader.LookupNamespace(String) Method

Definition

Resolves a namespace prefix in the current element's scope.

public:
 override System::String ^ LookupNamespace(System::String ^ prefix);
public override string? LookupNamespace (string prefix);
public override string LookupNamespace (string prefix);
override this.LookupNamespace : string -> string
Public Overrides Function LookupNamespace (prefix As String) As String

Parameters

prefix
String

The prefix whose namespace URI you want to resolve. To match the default namespace, pass an empty string. This string does not have to be atomized.

Returns

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

Remarks

Note

In the .NET Framework 2.0, the recommended practice is to create XmlReader instances using the XmlReaderSettings class and the Create method. This allows you to take full advantage of all the new features introduced in the .NET Framework. For more information, see the Remarks section in the XmlReader reference page.

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.

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

Applies to