Moves to the first attribute.
(in System.Xml.dll)
Visual Basic (Declaration)
Public Overrides Function MoveToFirstAttribute As Boolean
Dim instance As XmlTextReader
Dim returnValue As Boolean
returnValue = instance.MoveToFirstAttribute()
public override bool MoveToFirstAttribute()
public:
virtual bool MoveToFirstAttribute() override
public override function MoveToFirstAttribute() : boolean
Return Value
Type:
System..::.Boolean
true if an attribute exists (the reader moves to the first attribute); otherwise, false (the position of the reader does not change).
.gif) Note: |
|---|
In the .NET Framework version 2.0 release, the recommended practice is to create XmlReader instances using the XmlReader..::.Create method. This allows you to take full advantage of the new features introduced in this release. For more information, see Creating XML Readers. |
The following example gets the value of the first attribute of the root node.
Imports System
Imports System.IO
Imports System.Xml
Public Class Sample
Public Shared Sub Main()
Dim reader As XmlTextReader = Nothing
Try
'Load the reader with the XML file.
reader = New XmlTextReader("attrs.xml")
'Read the genre attribute.
reader.MoveToContent()
reader.MoveToFirstAttribute()
Dim genre As String = reader.Value
Console.WriteLine("The genre value: " & genre)
Finally
If Not (reader Is Nothing) Then
reader.Close()
End If
End Try
End Sub 'Main
End Class 'Sample
using System;
using System.IO;
using System.Xml;
public class Sample
{
public static void Main()
{
XmlTextReader reader = null;
try
{
//Load the reader with the XML file.
reader = new XmlTextReader("attrs.xml");
//Read the genre attribute.
reader.MoveToContent();
reader.MoveToFirstAttribute();
string genre=reader.Value;
Console.WriteLine("The genre value: " + genre);
}
finally
{
if (reader != null)
reader.Close();
}
}
} // End class
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
XmlTextReader^ reader = nullptr;
try
{
//Load the reader with the XML file.
reader = gcnew XmlTextReader( "attrs.xml" );
//Read the genre attribute.
reader->MoveToContent();
reader->MoveToFirstAttribute();
String^ genre = reader->Value;
Console::WriteLine( "The genre value: {0}", genre );
}
finally
{
if ( reader != nullptr )
reader->Close();
}
}
#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
XmlTextReader* reader = 0;
try
{
//Load the reader with the XML file.
reader = new XmlTextReader(S"attrs.xml");
//Read the genre attribute.
reader->MoveToContent();
reader->MoveToFirstAttribute();
String* genre=reader->Value;
Console::WriteLine(S"The genre value: {0}", genre);
}
__finally
{
if (reader != 0)
reader->Close();
}
}
The example uses the file, attrs.xml, as input.
<book genre='novel' ISBN='1-861003-78' pubdate='1987'>
</book>
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
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