XmlWriter.WriteStartElement Method (String)

 
System_CAPS_noteNote

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When overridden in a derived class, writes out a start tag with the specified local name.

Namespace:   System.Xml
Assembly:  System.Xml (in System.Xml.dll)

Public Sub WriteStartElement (
	localName As String
)

Parameters

localName
Type: System.String

The local name of the element.

Exception Condition
InvalidOperationException

The writer is closed.

EncoderFallbackException

There is a character in the buffer that is a valid XML character but is not valid for the output encoding. For example, if the output encoding is ASCII, you should only use characters from the range of 0 to 127 for element and attribute names. The invalid character might be in the argument of this method or in an argument of previous methods that were writing to the buffer. Such characters are escaped by character entity references when possible (for example, in text nodes or attribute values). However, the character entity reference is not allowed in element and attribute names, comments, processing instructions, or CDATA sections.

InvalidOperationException

An XmlWriter method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message “An asynchronous operation is already in progress.”

For the asynchronous version of this method, see WriteStartElementAsync.

The following example writes an XML node.

Option Explicit
Option Strict

Imports System
Imports System.IO
Imports System.Xml

Public Class Sample

  Public Shared Sub Main()

     ' Create a writer to write XML to the console.
     Dim settings As XmlWriterSettings = new XmlWriterSettings()
     settings.Indent = true
     settings.OmitXmlDeclaration = true
     Dim writer As XmlWriter = XmlWriter.Create(Console.Out, settings)

     ' Write the book element.
     writer.WriteStartElement("book")

     ' Write the title element.
     writer.WriteStartElement("title")
     writer.WriteString("Pride And Prejudice")
     writer.WriteEndElement()

     ' Write the close tag for the root element.
     writer.WriteEndElement()

     ' Write the XML and close the writer.
     writer.Close()

  End Sub 'Main 
End Class 'Sample

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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