XmlNodeReader::BaseURI Property
Gets the base URI of the current node.
Assembly: System.Xml (in System.Xml.dll)
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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. |
A networked XML document is comprised of chunks of data aggregated using various W3C standard inclusion mechanisms and therefore contains nodes that come from different places. DTD entities are an example of this, but this is not limited to DTDs. The base URI tells you where these nodes came from. If there is no base URI for the nodes being returned (for example, they were parsed from an in-memory string), String.Empty is returned.
The following example parses a file and displays the base URI of each of the nodes.
#using <System.Xml.dll> using namespace System; using namespace System::IO; using namespace System::Xml; int main() { XmlNodeReader^ reader = nullptr; try { //Create and load an XmlDocument. XmlDocument^ doc = gcnew XmlDocument; doc->Load( "http://localhost/uri.xml" ); reader = gcnew XmlNodeReader( doc ); //Parse the file and display the base URI for each node. while ( reader->Read() ) { Console::WriteLine( "({0}) {1}", reader->NodeType, reader->BaseURI ); } } finally { if ( reader != nullptr ) reader->Close(); } }
The example uses the file, uri.xml, as input.
<!-- XML fragment --> <!DOCTYPE book [<!ENTITY s SYSTEM "tmp/style.xml">]> <book genre="novel"> <title>Pride And Prejudice</title> <misc>&s;</misc> </book>
The style.xml file contains the XML text <style>hardcover</style>.
Available since 1.1
