XPathNavigator.LookupPrefix(String) Method

Definition

Namespace:

System.Xml.XPath

Assembly:

System.Xml.ReaderWriter.dll

Source:

XPathNavigator.cs

Gets the prefix declared for the specified namespace URI.

public:
 virtual System::String ^ LookupPrefix(System::String ^ namespaceURI);

public virtual string? LookupPrefix (string namespaceURI);

abstract member LookupPrefix : string -> string
override this.LookupPrefix : string -> string

Public Overridable Function LookupPrefix (namespaceURI As String) As String

Parameters

namespaceURI

String

The namespace URI to resolve for the prefix.

Returns

String

A String that contains the namespace prefix assigned to the namespace URI specified; otherwise, Empty if no prefix is assigned to the namespace URI specified. The String returned is atomized.

Implements

LookupPrefix(String)

Remarks

The LookupPrefix method returns the first prefix that matches the namespace URI specified. Multiple prefixes referring to the same namespace URI are not ordered in any particular way, so a particular prefix may not be returned each time when more than one is assigned.

Note

Namespace URI to prefix mappings can change from node to node in an XML document. As a result, the value of the LookupPrefix method may not be consistent from one node to the next.