XmlDocument.CreateProcessingInstruction Method

Creates an XmlProcessingInstruction with the specified name and data.

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

public virtual XmlProcessingInstruction CreateProcessingInstruction(
	string target,
	string data
)

Parameters

target
Type: System.String

The name of the processing instruction.

data
Type: System.String

The data for the processing instruction.

Return Value

Type: System.Xml.XmlProcessingInstruction
The new XmlProcessingInstruction.

Although this method creates the new object in the context of the document, it does not automatically add the new object to the document tree. To add the new object, you must explicitly call one of the node insert methods.

According to the W3C Extensible Markup Language (XML) 1.0 recommendation (www.w3.org/TR/1998/REC-xml-19980210), ProcessingInstruction nodes are only allowed within Document, Element, and EntityReference nodes, when the EntityReference node is not a child of an Attribute node.

The following example creates a ProcessingInstruction node and adds it to the document.

using System;
using System.IO;
using System.Xml;

public class Sample
{
  public static void Main()
  {
    XmlDocument doc = new XmlDocument();

    // Create a procesing instruction.
    XmlProcessingInstruction newPI;
    String PItext = "type='text/xsl' href='book.xsl'";
    newPI = doc.CreateProcessingInstruction("xml-stylesheet", PItext);

    // Display the target and data information.
    Console.WriteLine("<?{0} {1}?>", newPI.Target, newPI.Data);

    // Add the processing instruction node to the document.
    doc.AppendChild(newPI);

  }
}
#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;

int main()
{
    XmlDocument* doc = new XmlDocument();

    // Create a procesing instruction.
    XmlProcessingInstruction* newPI;
    String* PItext = S"type='text/xsl' href='book.xsl'";
    newPI = doc->CreateProcessingInstruction(S"xml-stylesheet", PItext);

    // Display the target and data information.
    Console::WriteLine(S"<?{0} {1}?>",newPI->Target,newPI->Data);

    // Add the processing instruction node to the document.
    doc->AppendChild(newPI);
}

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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