mithilesh kumar singh

how to create write and read xml file in console application

Step 1:

-> Open vs
->Go to file
->New ->project -> choose Console Application
-> Give Any name and Click Add.

Step2:
-> Go to Solution Explorer
-> Right Click Project Name
->Go to Add
-> New Item
-> Select xml file
->Give Any Name(Here:Products.xml)
->Ok

Step3:
->Add Namespace

using System.Xml;
Step4:
-> Write code for create write and read


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
namespace xmlwrite

Program
    {
        static void Main(string[] args)
        {
            XmlWriterSettings settings = new XmlWriterSettings();
            settings.Indent = true;
            XmlWriter writer = XmlWriter.Create("Products.xml", settings);
            writer.WriteStartDocument();
            writer.WriteComment("This file is generated by the program.");
            writer.WriteStartElement("Product");
            writer.WriteAttributeString("ID", "001");
            writer.WriteAttributeString("Name", "Laptop");
            writer.WriteElementString("Price", "30000.00");
            writer.WriteStartElement("OtherDetails");
            writer.WriteElementString("BrandName", "Dell");
            writer.WriteElementString("Manufacturer", "DellCompny");
            writer.WriteEndElement();
            writer.WriteEndDocument();

      


writer.Flush(); writer.Close();



            XmlTextReader reader = new XmlTextReader("Products.xml");
            while (reader.Read())
            {
                switch (reader.NodeType)
                {
                    case XmlNodeType.Element: // The node is an element.                        Console.Write("<" + reader.Name);
                        Console.WriteLine(">");
                        break;
                    case XmlNodeType.Text: //Display the text in each element.                        Console.WriteLine(reader.Value);
                       break;
                    case XmlNodeType.EndElement: //Display the end of the element.                        Console.Write("</" + reader.Name);
                        Console.WriteLine(">");
                       break;
                }
            }
            Console.ReadLine();
        }
    }
}

Note:-
->We use the XmlWriterSettings class to create a setting for the XmlWriter that we will use.
-> We then create an XmlWriter object by calling the XmlWriter.Create method and supplying the filename and the XmlWriterSettings object.
-> We Use WriteStartElement() supply the name of the element as the argument.
->We Use WriteStartElement()  writes the closing tag of that element..
->We use WriteAttributeString() method and supply the name and the value for that attribute.
-> We use .WriteElementString() method with a name and a value as the arguments to write an element that is wrapping a value.
->.WriteStartDocument() method which writes the xml declaration 
-> we used the Writer.Flush() method to clean the contents of the stream.
-> XmlWriter.Close() method to save the file and stop the program from using it.

Step5:
->Run the program

and see output