XmlReader — System.Xml (system.xml.dll) CF 1.0, ECMA 1.0 abstract class
public abstract class XmlReader { // Protected Constructors protected XmlReader( ); // Public Instance Properties public abstract int AttributeCount{get; } public abstract string BaseURI{get; } public virtual bool CanResolveEntity{get; } public abstract int Depth{get; } public abstract bool EOF{get; } public virtual bool HasAttributes{get; } public abstract bool HasValue{get; } public abstract bool IsDefault{get; } public abstract bool IsEmptyElement{get; } public abstract string LocalName{get; } public abstract string Name{get; } public abstract string NamespaceURI{get; } public abstract XmlNameTable NameTable{get; } public abstract XmlNodeType NodeType{get; } public abstract string Prefix{get; } public abstract char QuoteChar{get; } public abstract ReadState ReadState{get; } public abstract string this[ string name, string namespaceURI ]{get; } public abstract string this[ int i ]{get; } public abstract string this[ string name ]{get; } public abstract string Value{get; } public abstract string XmlLang{get; } public abstract XmlSpace XmlSpace{get; } // Public Static Methods public static bool IsName( string str); public static bool IsNameToken( string str); // Public Instance Methods public abstract void Close( ); public abstract string GetAttribute( int i); public abstract string GetAttribute( string name); public abstract string GetAttribute( string name, string namespaceURI); public virtual bool IsStartElement( ); public virtual bool IsStartElement( string name); public virtual bool IsStartElement( string localname, string ns); public abstract string LookupNamespace( string prefix); public abstract bool MoveToAttribute( string name); public abstract bool MoveToAttribute( string name, string ns); public abstract void MoveToAttribute( int i); public virtual XmlNodeType MoveToContent( ); public abstract bool MoveToElement( ); public abstract bool MoveToFirstAttribute( ); public abstract bool MoveToNextAttribute( ); public abstract bool Read( ); public abstract bool ReadAttributeValue( ); public virtual string ReadElementString( ); public virtual string ReadElementString( string name); public virtual string ReadElementString( string localname, string ns); public virtual void ReadEndElement( ); public virtual string ReadInnerXml( ); public virtual string ReadOuterXml( ); public virtual void ReadStartElement( ); public virtual void ReadStartElement( string name); public virtual void ReadStartElement( string localname, string ns); public virtual string ReadString( ); public abstract void ResolveEntity( ); public virtual void Skip( ); }
This class is a simple reader for XML
documents. XmlReader
provides a non-cached,
forward-only navigation through an XML data stream. It does not
provide validation, nor does it expand general entities. Two derived
classes provide these features: XmlTextReader
and
XmlValidatingReader
.
The
XmlReader
class parses XML in a streaming-based
approach (exemplified by the SAX specification). This means the XML
parser presents “interesting
pieces” (elements, attributes, namespace
declarations, and so forth) in a linear order. Within
XmlReader
, this ordering of nodes is done using
successive calls to the Read( )
method. An
XmlReader
is not positioned on a node at
first—an initial call to Read( )
is required
to move to the root node of a document. Subsequent calls to
Read( )
move the reader sequentially through the
nodes. The NodeType
property tells you which type
of node the reader is currently positioned on, returning values from
the XmlNodeType
enumeration. A special node-type
value for XmlReader
is
EndElement
. As Read( )
moves
through the stream, it can be positioned on an
element’s end tag after it has stepped through the
element’s children. This is not a real node, in the
DOM sense, but is required for XmlReader
to parse
XML data properly. The Skip( )
method steps
through data node by node. A call to Skip( )
moves
the reader to the next real node, disregarding the current
node’s children.
XML documents can also be parsed in a tree-based approach, using the
XmlDocument
type.
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