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XmlNamespaceManager::LookupNamespace Method (String^)

 

Gets the namespace URI for the specified prefix.

Namespace:   System.Xml
Assembly:  System.Xml (in System.Xml.dll)

public:
virtual String^ LookupNamespace(
	String^ prefix
)

Parameters

prefix
Type: System::String^

The prefix whose namespace URI you want to resolve. To match the default namespace, pass String.Empty.

Return Value

Type: System::String^

Returns the namespace URI for prefix or null if there is no mapped namespace. The returned string is atomized.

For more information on atomized strings, see the XmlNameTable class.

The following example adds prefix/namespace pairs to the XmlNamespaceManager, and then displays all the pairs in the collection.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
public ref class Sample
{
public:
   Sample()
   {

      // Create the XmlNamespaceManager.
      NameTable^ nt = gcnew NameTable;
      XmlNamespaceManager^ nsmgr = gcnew XmlNamespaceManager( nt );

      // Add prefix/namespace pairs to the XmlNamespaceManager.
      nsmgr->AddNamespace( "", "www.wideworldimporters.com" ); //Adds a default namespace.
      nsmgr->AddNamespace( "europe", "www.wideworldimporters.com/europe" );
      nsmgr->PushScope(); //Pushes a namespace scope on the stack.
      nsmgr->AddNamespace( "", "www.lucernepublishing.com" ); //Adds another default namespace.
      nsmgr->AddNamespace( "partners", "www.lucernepublishing.com/partners" );
      Console::WriteLine( "Show all the prefix/namespace pairs in the XmlNamespaceManager..." );
      ShowAllNamespaces( nsmgr );
   }


private:
   void ShowAllNamespaces( XmlNamespaceManager^ nsmgr )
   {
      do
      {
         System::Collections::IEnumerator^ myEnum = nsmgr->GetEnumerator();
         while ( myEnum->MoveNext() )
         {
            String^ prefix = safe_cast<String^>(myEnum->Current);
            Console::WriteLine( "Prefix={0}, Namespace={1}", prefix, nsmgr->LookupNamespace( prefix ) );
         }
      }
      while ( nsmgr->PopScope() );
   }

};

int main()
{
   gcnew Sample;
}

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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