Need clarification on xmldocument,xmlelement,xelement,xmlnod

Here is small example for your question

Consier following xml document on which we want to manipulate

xml version="1.0" encoding="utf-8" ?>
<Class>
<Students>
<studentName>AmitstudentName>
<studentAge>20studentAge>
<studentResult>PASSstudentResult>
Students>
<Students>
<studentName>VikramstudentName>
<studentAge>19studentAge>
<studentResult>FAILstudentResult>
Students>
<Students>
<studentName>SiddheshstudentName>
<studentAge>20studentAge>
<studentResult>PASSstudentResult>
Students>
Class>

There are many ways we can manipulate and read the given xml document in c#

1) Using XmlDocument , XmlNode and XmlElement . You can use this classes to navigate elements of xml document systematically.

public void ReadXML()
{
string appData = AppDomain.CurrentDomain.GetData("DataDirectory").ToString();
string path = Path.Combine(appData, "XMLDemo.xml");
XmlDocument doc = new XmlDocument(); // Require using System.Xml;
doc.Load(path);
XmlNodeList nodes = doc.DocumentElement.SelectNodes("/Class/Students");
foreach (XmlNode node in nodes) // XMLNode is Students node of class element
{
//fetching individual node value from Students Node
var studentName = node.SelectSingleNode("studentName").InnerText;
var studentAge = node.SelectSingleNode("studentAge").InnerText;
var studentResult = node.SelectSingleNode("studentResult").InnerText;
}
XmlElement root = doc.DocumentElement; // Will give you root xml element
XmlNodeList elemList = root.GetElementsByTagName("Students"); // getting Students Node from XMLElement object
foreach (XmlNode node in nodes)
{
var studentName = node.SelectSingleNode("studentName").InnerText;
var studentAge = node.SelectSingleNode("studentAge").InnerText;
var studentResult = node.SelectSingleNode("studentResult").InnerText;
}
}

In the above example i have used XmlDocument of System.Xml namespace for navigating xml elements first using SelectNodes method i have fetch XMLNodeList and iterating XMLNode for accessing all child elements .

Secondly i have use XmlElement class with GetElementsByTagName to get all nodes of class.

2) Another way you can fetch documents using XElement class of System.Xml.Linq namespace following is example you can refer.

public void ReadXMLElelment() {
string appData = AppDomain.CurrentDomain.GetData("DataDirectory").ToString();
string path = Path.Combine(appData, "XMLDemo.xml");
XDocument doc = XDocument.Load(path); // Require using System.Xml.Linq
XElement elements = doc
.Element("Class")
.Element("Students"); // Navigating Students element this will result in first Students element
var studentName = elements.Element("studentName").Value; // getting individual elemets value from XElement object
var studentAge = elements.Element("studentAge").Value;
var studentResult = elements.Element("studentResult").Value;
}

I hope this is useful

Regards,

Ketan

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Satish8y ago
Thanks
Ketan Mokariya8y ago
Here is small example for your question

Consier following xml document on which we want to manipulate
xml version="1.0" encoding="utf-8" ?>
<Class>
  <Students>
    <studentName>AmitstudentName>
    <studentAge>20studentAge>
    <studentResult>PASSstudentResult>
  Students>

<Students>
    <studentName>VikramstudentName>
    <studentAge>19studentAge>
    <studentResult>FAILstudentResult>
  Students>

<Students>
    <studentName>SiddheshstudentName>
    <studentAge>20studentAge>
    <studentResult>PASSstudentResult>
  Students>

Class>
There are many ways we can manipulate and read the given xml document in c#
1) Using XmlDocument , XmlNode and XmlElement . You can use this classes to navigate elements of xml document systematically.
public void ReadXML()
       {
           string appData = AppDomain.CurrentDomain.GetData("DataDirectory").ToString();
           string path = Path.Combine(appData, "XMLDemo.xml");


           XmlDocument doc = new XmlDocument(); // Require using System.Xml;
           doc.Load(path);

           XmlNodeList nodes = doc.DocumentElement.SelectNodes("/Class/Students");
           foreach (XmlNode node in nodes)  // XMLNode is Students node of class element
           {
               //fetching individual node value from Students Node

               var studentName = node.SelectSingleNode("studentName").InnerText;
               var studentAge = node.SelectSingleNode("studentAge").InnerText;
               var studentResult = node.SelectSingleNode("studentResult").InnerText;

           }


           XmlElement root = doc.DocumentElement;    // Will give you root xml element
           XmlNodeList elemList = root.GetElementsByTagName("Students"); // getting Students Node from XMLElement object
           foreach (XmlNode node in nodes)
           {
               var studentName = node.SelectSingleNode("studentName").InnerText;
               var studentAge = node.SelectSingleNode("studentAge").InnerText;
               var studentResult = node.SelectSingleNode("studentResult").InnerText;

           }
       }
In the above example i have used XmlDocument of System.Xml namespace for navigating xml elements first using SelectNodes method i have fetch XMLNodeList and iterating XMLNode for accessing all child elements .
Secondly i have use XmlElement class with GetElementsByTagName to get all nodes of class.

2) Another way you can fetch documents using XElement class of System.Xml.Linq namespace following is example you can refer.
public void ReadXMLElelment() {

           string appData = AppDomain.CurrentDomain.GetData("DataDirectory").ToString();
           string path = Path.Combine(appData, "XMLDemo.xml");


           XDocument doc = XDocument.Load(path);  // Require using System.Xml.Linq
           XElement elements = doc
                   .Element("Class")
                   .Element("Students");  // Navigating Students element this will result in first Students element

           var studentName = elements.Element("studentName").Value;  // getting individual elemets value from XElement object
           var studentAge = elements.Element("studentAge").Value;
           var studentResult = elements.Element("studentResult").Value;
       }
I hope this is useful

Regards,
Ketan