XmlDataDocument — System.Xml (system.data.dll) class
public class XmlDataDocument : XmlDocument { // Public Constructors public XmlDataDocument( ); public XmlDataDocument( System.Data.DataSet dataset); // Public Instance Properties public DataSet DataSet{get; } // Public Instance Methods public override XmlNode CloneNode( bool deep); // overrides XmlDocument public override XmlElement CreateElement( string prefix, string localName, string namespaceURI); // overrides XmlDocument public override XmlEntityReference CreateEntityReference( string name); // overrides XmlDocument public override XmlElement GetElementById( string elemId); // overrides XmlDocument public XmlElement GetElementFromRow( System.Data.DataRow r); public DataRow GetRowFromElement( XmlElement e); public override void Load( System.IO.Stream inStream); // overrides XmlDocument public override void Load( string filename); // overrides XmlDocument public override void Load( System.IO.TextReader txtReader); // overrides XmlDocument public override void Load( XmlReader reader); // overrides XmlDocument // Protected Instance Methods protected override XPathNavigator CreateNavigator( XmlNode node); // overrides XmlDocument }
The
XmlDataDocument
is a marriage of XML and RDBMS
technology; it is an XmlDocument
-inheriting class
that particularly understands ADO.NET DataSet objects. This offers a
variety of opportunities to the .NET programmer—for example, a
DataSet
can be loaded into the
XmlDataDocument
, and then navigated using
traditional DOM-style navigation using the XmlNode
API. In fact, because XmlDataDocument
also
inherits the System.Xml.XPath.IXPathNavigable
interface, XPath queries can be issued against the
DataSet
data, as well.
In order to build this relationship,
construct the XmlDataDocument
with the
DataSet
holding the data as its constructor
parameter. Alternatively, use the Load( )
method
to read in the data via an XmlReader
. The
resulting XML can also then be written out to another medium with the
WriteTo( )
method.
3.144.97.189