Namespace:
System.Xml
Assembly:
System.Xml (in System.Xml.dll)
Visual Basic (Declaration)
Public Class NameTable _
Inherits XmlNameTable
Dim instance As NameTable
public class NameTable : XmlNameTable
public ref class NameTable : public XmlNameTable
public class NameTable extends XmlNameTable
Several classes, such as XmlDocument and XmlReader, use the NameTable class internally to store attribute and element names. When an element or attribute name occurs multiple times in an XML document, it is stored only once in the NameTable.
The names are stored as common language runtime (CLR) object types. This enables you to do object comparisons on these strings rather than a more expensive string comparison. These string objects are referred to as atomized strings.
The following example compares two element names.
Dim nt As NameTable = New NameTable()
Dim book As object = nt.Add("book")
Dim price As object = nt.Add("price")
' Create the reader.
Dim settings As XmlReaderSettings = New XmlReaderSettings()
settings.NameTable = nt
Dim reader As XmlReader = XmlReader.Create("books.xml", settings)
reader.MoveToContent()
reader.ReadToDescendant("book")
If (System.Object.ReferenceEquals(book, reader.Name))
' Do additional processing.
End If
NameTable nt = new NameTable();
object book = nt.Add("book");
object price = nt.Add("price");
// Create the reader.
XmlReaderSettings settings = new XmlReaderSettings();
settings.NameTable = nt;
XmlReader reader = XmlReader.Create("books.xml", settings);
reader.MoveToContent();
reader.ReadToDescendant("book");
if (System.Object.ReferenceEquals(book, reader.Name)) {
// Do additional processing.
}
NameTable^ nt = gcnew NameTable;
Object^ book = nt->Add( "book" );
Object^ price = nt->Add( "price" );
// Create the reader.
XmlReaderSettings ^ settings = gcnew XmlReaderSettings;
settings->NameTable = nt;
XmlReader^ reader = XmlReader::Create( (String^)"books.xml", settings );
reader->MoveToContent();
reader->ReadToDescendant( "book" );
if ( System::Object::ReferenceEquals( book, reader->Name ) )
{
// Do additional processing.
}
NameTable* nt = new NameTable();
Object* book = nt->Add(S"book");
Object* price = nt->Add(S"price");
// Create the reader.
XmlReaderSettings* settings = new XmlReaderSettings();
settings->NameTable = nt;
XmlReader* reader = XmlReader::Create(S"books.xml", settings);
reader->MoveToContent();
reader->ReadToDescendant(S"book");
if (System::Object::ReferenceEquals(book, reader->Name)) {
// Do additional processing.
}
System..::.Object
System.Xml..::.XmlNameTable
System.Xml..::.NameTable
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 3.5, 2.0, 1.0
XNA Framework
Supported in: 3.0, 2.0, 1.0
Reference