how to read/modify the xml file in C#

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Thank you for reading my question.

thi is my xml file.

C#

<rootttt>
 <content>
  <pre>
    <aa>ma</aa>
    <bb>mb</bb>
    <cc>mc</cc>

<aa>ma</aa>
<bb>mb</bb>
<cc>mc</cc>

1: for the tag a, b, c, not always here, maybe missing.
2: for the tag pre, maybe many, but at least one.
3: modify, yes, contains, deleting, changing value.

how to read / modify this xml file in C#?

i tried somet solutions, but my C# is bad,,,i can't do it. could someone give me a sample code? thank you very much!

Posted 18-Apr-12 2:28am

erlvde

Updated 18-Apr-12 2:32am

v2

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Nilesh Patil Kolhapur · Answer 1 · 2012-04-18T02:31:00

Solution 1

Hey,

C#

refer following code
XmlDocument doc = new XmlDocument();
doc.Load("path_to_input_file");
// Make changes to the document.
XmlTextWriter xtw = new XmlTextWriter("path_to_output_file", Encoding.UTF8);
doc.WriteContentTo(xtw);

Best Luck
Happy Coding :)

Posted 18-Apr-12 2:31am

Nilesh Patil Kolhapur

Comments

erlvde 18-Apr-12 8:37am

thank you very much for helping me..but could you give me more information in detail? i am very fresh man when coding...and the format of xml file...i don't know what happend to it..

<root>
<aa>sdfsf
<bb>
<nn>
<nb>sfsdf
<nob>sdfsdf

<nn>
<nb>sfsdf
<nob>sdfsdf

Saroj Kumar Sahu · Answer 2 · 2012-04-18T02:38:00

XML

Hi,

Here a small example that uses the XmlSerializer to write data from a class into an Xml and reads it back:

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

namespace XmlDataSerializer
{
    // The data class containing two properties
    [Serializable()]
    public class Data
    {
        public String FirstProperty { get; set; }
        public int SecondProperty { get; set; }
    }


    // The test program
    class Program
    {

        static void Main(string[] args)
        {

            Data tx = new Data();
            tx.FirstProperty = "Hello Word";
            tx.SecondProperty = 4711;

            // Write to XML
            XmlSerializer writer = new XmlSerializer(typeof(Data));
            using (FileStream file = File.OpenWrite("data.xml"))
            {
                writer.Serialize(file, tx);
            }

            // Read from XML
            Data rx;

            XmlSerializer reader = new XmlSerializer(typeof(Data));
            using (FileStream input = File.OpenRead("data.xml"))
            {
                rx = reader.Deserialize(input) as Data;
            }

            Console.WriteLine("1st = <{0}, 2nd = <{1}>", rx.FirstProperty, rx.SecondProperty);
            Console.ReadLine();



        }
    }
}



The XML looks like that:

<?xml version="1.0"?>
<Data xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <FirstProperty>Hello Word</FirstProperty>
  <SecondProperty>4711</SecondProperty>
</Data>

You may refer this.

http://www.c-sharpcorner.com/UploadFile/mahesh/ReadWriteXMLTutMellli2111282005041517AM/ReadWriteXMLTutMellli21.aspx[^]

Reading an XML file using .NET[^]