how we do XML parsing in C sharp

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hi,
please help me find node in XML.
my XML file is:

XML

<?xml version="1.0" encoding="UTF-8"?>
<DistanceMatrixResponse>
 <status>OK</status>
 <origin_address>California, USA</origin_address>
 <destination_address>Louisiana, USA</destination_address>
 <row>
  <element>
   <status>OK</status>
   <duration>
    <value>110693</value>
    <text>1 day 7 hours</text>
   </duration>
   <distance>
    <value>3037646</value>
    <text>3,038 km</text>
   </distance>
  </element>
 </row>
</DistanceMatrixResponse>

I want distance from this XML file. I'm using this code but it gives error

C#

XmlDocument xml = new XmlDocument();
  xml.LoadXml(tempString);  // suppose that str string contains "<Names>...</Names>"

//  XmlNodeList xnList = xml.SelectNodes("/DistanceMatrixResponse/text/[@type='distance']");

  XmlNode node = xml.SelectSingleNode("DistanceMatrixResponse/row/element/distance/text()");
  foreach (XmlNode xn in node)
  {
      Console.WriteLine(xn.InnerText);
  }

Posted 30-Jan-12 23:32pm

Arvind_singh

Updated 31-Jan-12 0:02am

CPallini

v4

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walterhevedeich 31-Jan-12 5:42am

Whats the error?

4 solutions

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CPallini · Answer 1 · 2012-01-31T00:10:00

Solution 1

Do you mean:

C#

XmlDocument xml = new XmlDocument();
xml.Load("myfile.xml");

XmlNode node;
node = xml.SelectSingleNode("DistanceMatrixResponse/row/element/distance/text");

Console.WriteLine(node.InnerText);

?

Posted 31-Jan-12 0:10am

CPallini

Manisha Tambade · Answer 2 · 2012-01-31T00:13:00

Use following code to read Xml file-

C#

Now add namespace - using System.Xml;
on button click write code as-
XmlTextReader reader = new XmlTextReader("C:\\Users\\Dell\\Desktop\\New folder\\XMLFile1.xml");   //this will location and name of xml 
               while (reader.Read())
                {
                  switch (reader.NodeType)
                    {
                  case XmlNodeType.Element: // The node is an element.
                        MessageBox.Show("<" + reader.Name);
                       //MessageBox.Show(">");
                       //MessageBox.Show(reader.Value);
                        break;
                  case XmlNodeType.Text: //Display the text in each element.
                        MessageBox.Show(reader.Value);        
                        break;
                  case XmlNodeType.EndElement: //Display the end of the element.
                        //Console.Write("</" + reader.Name);
                        //MessageBox.Show(">");
                         break;
                     }
                  }

Sergey Alexandrovich Kryukov · Answer 3 · 2012-01-31T14:02:00

The .NET Framework comes with different library classes used to parse XML; please see my overview of them below:

Use System.Xml.XmlDocument class. It implements DOM interface; this way is the easiest and good enough if the size if the document is not too big.
See http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx[^].
Use the class System.Xml.XmlTextReader; this is the fastest way of reading, especially is you need to skip some data.
See http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx[^].
Use the class System.Xml.Linq.XDocument; this is the most adequate way similar to that of XmlDocument, supporting LINQ to XML Programming.
See http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx[^], http://msdn.microsoft.com/en-us/library/bb387063.aspx[^].

—SA

Sergey Alexandrovich Kryukov · Answer 4 · 2012-01-31T14:02:00

The .NET Framework comes with different library classes used to parse XML; please see my overview of them below:

Use System.Xml.XmlDocument class. It implements DOM interface; this way is the easiest and good enough if the size if the document is not too big.
See http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx[^].
Use the class System.Xml.XmlTextReader; this is the fastest way of reading, especially is you need to skip some data.
See http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx[^].
Use the class System.Xml.Linq.XDocument; this is the most adequate way similar to that of XmlDocument, supporting LINQ to XML Programming.
See http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx[^], http://msdn.microsoft.com/en-us/library/bb387063.aspx[^].

—SA

how we do XML parsing in C sharp

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