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XmlWriter.WriteStartElement Method (String, String)

When overridden in a derived class, writes the specified start tag and associates it with the given namespace.

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

public void WriteStartElement(
	string localName,
	string ns
)

Parameters

localName
Type: System.String

The local name of the element.

ns
Type: System.String

The namespace URI to associate with the element. If this namespace is already in scope and has an associated prefix, the writer automatically writes that prefix also.

ExceptionCondition
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 may 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 instruction, or CDATA sections. If a character not valid for the output encoding is encountered, an EncoderFallbackException is thrown.

After calling this method you can either write attributes, or create content using WriteComment, WriteString, or WriteStartElement for child elements. You can close the element with either WriteEndElement or WriteFullEndElement. For example, the following C# code:

 writer.WriteStartElement("item",null);
 writer.WriteString("some text");
 writer.WriteEndElement();

Generates the following output:

 <item>some text</item>

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
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