XmlDocument.Save Method (String)

Saves the XML document to the specified file.

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

public virtual void Save (
	string filename
)
public void Save (
	String filename
)
public function Save (
	filename : String
)

Parameters

filename

The location of the file where you want to save the document.

Exception typeCondition

XmlException

The operation would not result in a well formed XML document (for example, no document element or duplicate XML declarations).

White space is preserved in the output file only if PreserveWhitespace is set to true.

The XmlDeclaration of the current XmlDocument object determines the encoding attribute in the saved document. The value of the encoding attribute is taken from the XmlDeclaration.Encoding property. If the XmlDocument does not have an XmlDeclaration, or if the XmlDeclaration does not have an encoding attribute, the saved document will not have one either.

When the document is saved, xmlns attributes are generated to persist the node identity (local name + namespace URI) correctly. For example, the following C# code

 XmlDocument doc = new XmlDocument();
 doc.AppendChild(doc.CreateElement("item","urn:1"));
 doc.Save(Console.Out);

generates this xmls attribute <item xmls="urn:1"/>.

This method is a Microsoft extension to the Document Object Model (DOM).

The following example loads XML into an XmlDocument object, modifies it, and then saves it to a file.

using System;
using System.Xml;

public class Sample {

  public static void Main() {
 
    // Create the XmlDocument.
    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<item><name>wrench</name></item>");

    // Add a price element.
    XmlElement newElem = doc.CreateElement("price");
    newElem.InnerText = "10.95";
    doc.DocumentElement.AppendChild(newElem);

    // Save the document to a file. White space is
    // preserved (no white space).
    doc.PreserveWhitespace = true;
    doc.Save("data.xml");
 
  }
}

import System.*;
import System.Xml.*;

public class Sample
{
    public static void main(String[] args)
    {
        // Create the XmlDocument.
        XmlDocument doc = new XmlDocument();
        doc.LoadXml("<item><name>wrench</name></item>");

        // Add a price element.
        XmlElement newElem = doc.CreateElement("price");
        newElem.set_InnerText("10.95");
        doc.get_DocumentElement().AppendChild(newElem);

        // Save the document to a file. White space is
        // preserved (no white space).
        doc.set_PreserveWhitespace(true);
        doc.Save("data.xml");
    } //main 
} //Sample

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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