Standalone Property
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XmlDeclaration.Standalone Property

Gets or sets the value of the standalone attribute.

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

public string Standalone { get; set; }

Property Value

Type: System.String
Valid values are yes if all entity declarations required by the XML document are contained within the document or no if an external document type definition (DTD) is required. If a standalone attribute is not present in the XML declaration, this property returns String.Empty.

The following example creates an XmlDeclaration node and adds it to an XML document.


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

public class Sample {

  public static void Main() {

    // Create and load the XML document.
    XmlDocument doc = new XmlDocument();
    string xmlString = "<book><title>Oberon's Legacy</title></book>";
    doc.Load(new StringReader(xmlString));

    // Create an XML declaration. 
    XmlDeclaration xmldecl;
    xmldecl = doc.CreateXmlDeclaration("1.0",null,null);
    xmldecl.Encoding="UTF-8";
    xmldecl.Standalone="yes";     

    // Add the new node to the document.
    XmlElement root = doc.DocumentElement;
    doc.InsertBefore(xmldecl, root);

    // Display the modified XML document 
    Console.WriteLine(doc.OuterXml);

  }
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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