how to find the value xml file and update

Question

 Hi Expects

                    How to find the particular value particular value and update  particular xml element value in asp.net in c#.net

 xml format

 <paddress>
    <autoid>0</autoid>
    <fname>Ranganathan</fname>
    <lname>palanisamy</lname>
    <address>bangalore</address>
    <mobile>9886974230</mobile>
    <phone>04295287563</phone>
    <mail>[e-mail]</mail>
  </paddress>

my problem is 

   programming wise find <autoid> and how to update fname,lname,address,mobile,phone & mail

 plz share the example code

thanks for sharing  your knowelege

---

Ranganathan.P., Software Developer., Bangalore India.

Answer 1

thnaks for viewers

i got solution

   XmlDocument doc = new XmlDocument();
doc.Load("C:\\YourXmlFile.xml");
XmlNodeList nodes = doc.GetElementsByTagName("autoid");

foreach (XmlNode node in nodes)
{
if (node.InnerText == "0")//If autoid is 0
{
XmlNode ParentNode = node.ParentNode;
string[] strNewList = {"autoid","newfname","newlname","newAddress","newMobile","newPhone","newMail"};
for (int i = 1; i < ParentNode.ChildNodes.Count; i++)
{
node.ParentNode.ChildNodes[i].InnerText = strNewList[i];
}
}
}
doc.Save("C:\\YourXmlFile.xml");

---

Ranganathan.P., Software Developer., Bangalore India.