How to create XML file using C#

This topic helps how to create XML file using C# programming.
For creating a new XML file in C#, we are using XmlTextWriter class.
You have to import two NameSpaces: System.Xml, System.IO

XML (Extensible Markup Language) – How to create XML file using C#

Extensible Markup Language (XML) is a markup language created to structure, store, and transport data by defining a set of rules for encoding documents in a format that is both human-readable and machine-readable.
The design goals of XML emphasize simplicity, generality, and usability over the Internet.
XML is a textual data format with strong support via Unicode for the languages of the world.
XML is developed by World Wide Web Consortium.
Hundreds of XML-based languages have been developed, including RSS, Atom, SOAP, and XHTML.

XmlTextWriter Class – How to create XML file using C#

XmlTextWriter Class represents a writer that provides a fast, non-cached, forward-only way of generating streams or files containing XML data that conforms to the W3C Extensible Markup Language (XML) 1.0 and the Namespaces in XML recommendations.

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

Syntax for XmlTextWriter Class

// Declaration
public class XmlTextWriter : XmlWriter {
}

// Declaration

public class XmlTextWriter : XmlWriter {

}

XmlTextWriter Constructor (String, Encoding) – How to create XML file using C#

Create an instance of the XmlTextWriter class using the specified file.
Syntax for XmlTextWriter Constructor

 // Declaration
    public DummyClass(string filename, Encoding encoding) {
    }

// Declaration

public DummyClass(string filename, Encoding encoding) {

}

XmlTextWriter.WriteStartDocument Method (Boolean) – How to create XML file using C#

Write the XML declaration with the version “1.0″ and the standalone attribute.
Syntax

 // Declaration
    public override void WriteStartDocument(bool standalone) {
    }

// Declaration

public override void WriteStartDocument(bool standalone) {

}

XmlWriter.WriteStartElement Method (String) – How to create XML file using C#

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

 // Declaration
    public void WriteStartElement(string localName) {
    }

// Declaration

public void WriteStartElement(string localName) {

}

How to create XML file using C# – Complete Code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            XmlTextWriter writer = new XmlTextWriter("C:\\productXML.xml", System.Text.Encoding.UTF8);
            writer.WriteStartDocument(true);
            writer.Formatting = Formatting.Indented;
            writer.Indentation = 2;
            writer.WriteStartElement("Table");
            createNode("1", "Product 1", "1000", writer);
            createNode("2", "Product 2", "2000", writer);
            createNode("3", "Product 3", "3000", writer);
            createNode("4", "Product 4", "4000", writer);
            writer.WriteEndElement();
            writer.WriteEndDocument();
            writer.Close();
        }

        public  void createNode(string pID, string pName, string pPrice, XmlTextWriter writer)
        {
            writer.WriteStartElement("Product");
            writer.WriteStartElement("Product_id");
            writer.WriteString(pID);
            writer.WriteEndElement();
            writer.WriteStartElement("Product_name");
            writer.WriteString(pName);
            writer.WriteEndElement();
            writer.WriteStartElement("Product_price");
            writer.WriteString(pPrice);
            writer.WriteEndElement();
            writer.WriteEndElement();
        }
    }
}

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Xml;

namespace WindowsFormsApplication1

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

XmlTextWriter writer = new XmlTextWriter("C:\\productXML.xml", System.Text.Encoding.UTF8);

writer.WriteStartDocument(true);

writer.Formatting = Formatting.Indented;

writer.Indentation = 2;

writer.WriteStartElement("Table");

createNode("1", "Product 1", "1000", writer);

createNode("2", "Product 2", "2000", writer);

createNode("3", "Product 3", "3000", writer);

createNode("4", "Product 4", "4000", writer);

writer.WriteEndElement();

writer.WriteEndDocument();

writer.Close();

}

public void createNode(string pID, string pName, string pPrice, XmlTextWriter writer)

{

writer.WriteStartElement("Product");

writer.WriteStartElement("Product_id");

writer.WriteString(pID);

writer.WriteEndElement();

writer.WriteStartElement("Product_name");

writer.WriteString(pName);

writer.WriteEndElement();

writer.WriteStartElement("Product_price");

writer.WriteString(pPrice);

writer.WriteEndElement();

}

How to create XML file using C# – Output result

<?xml version="1.0" encoding="utf-8" standalone="yes" ?> 
- <Table>
- <Product>
  <Product_id>1</Product_id> 
  <Product_name>Product 1</Product_name> 
  <Product_price>1000</Product_price> 
  </Product>
- <Product>
  <Product_id>2</Product_id> 
  <Product_name>Product 2</Product_name> 
  <Product_price>2000</Product_price> 
  </Product>
- <Product>
  <Product_id>3</Product_id> 
  <Product_name>Product 3</Product_name> 
  <Product_price>3000</Product_price> 
  </Product>
- <Product>
  <Product_id>4</Product_id> 
  <Product_name>Product 4</Product_name> 
  <Product_price>4000</Product_price> 
  </Product>
  </Table>

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>

- <Table>

- <Product>

<Product_id>1</Product_id>

<Product_name>Product 1</Product_name>

<Product_price>1000</Product_price>

</Product>

- <Product>

<Product_id>2</Product_id>

<Product_name>Product 2</Product_name>

<Product_price>2000</Product_price>

</Product>

- <Product>

<Product_id>3</Product_id>

<Product_name>Product 3</Product_name>

<Product_price>3000</Product_price>

</Product>

- <Product>

<Product_id>4</Product_id>

<Product_name>Product 4</Product_name>

<Product_price>4000</Product_price>

</Product>

</Table>

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How to create XML file using C#

XML (Extensible Markup Language) – How to create XML file using C#

XmlTextWriter Class – How to create XML file using C#

XmlTextWriter Constructor (String, Encoding) – How to create XML file using C#

XmlTextWriter.WriteStartDocument Method (Boolean) – How to create XML file using C#

XmlWriter.WriteStartElement Method (String) – How to create XML file using C#

How to create XML file using C# – Complete Code

How to create XML file using C# – Output result

How to create XML file using C#

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