Any good example for write, read a specific node value from a xml file using


Is there any good example for write, read a specific node value from a xml file using

Anu Palavila
8/9/2008 10:35:16 AM 7181 articles. 0 followers. Follow

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> using System.Xml;
> using System.Xml.XPath;

> Insertion:
>         XmlDocument xmlDoc = new XmlDocument();
>         xmlDoc.Load(MapPath("~/App_Data/Users.xml"));
>         XmlDocumentFragment docFrag = xmlDoc.CreateDocumentFragment();
>         string id = txt_ins_uid.Text;
>         string name = txt_ins_uname.Text;
>         string pwd = txt_ins_pwd.Text;
>         docFrag.InnerXml =
> "<user><id>"+id+"</id><name>"+name+"</name><password>"+pwd+"</password></us­er>";
>         XmlNode childNode = xmlDoc.DocumentElement ;
>         childNode.InsertAfter(docFrag, childNode.LastChild);
>         xmlDoc.Save(MapPath("~/App_Data/Users.xml"));
> Updattion:
>         XmlDocument xmlDoc = new XmlDocument();
>         xmlDoc.Load(MapPath("~/App_Data/Users.xml"));
>         XmlNode name = xmlDoc.SelectSingleNode("/UsersList/user[id='" +
> txt_upd_uid.Text + "']/name");
>         name.InnerText = txt_upd_uname.Text;
>         XmlNode pwd = xmlDoc.SelectSingleNode("/UsersList/user[id='" +
> txt_upd_uid.Text + "']/password");
>         pwd.InnerText = txt_upd_pwd.Text;
>         xmlDoc.Save (MapPath("~/App_Data/Users.xml"));
> Deletion:
>         XmlDocument xmlDoc = new XmlDocument();
>         xmlDoc.Load(MapPath("~/App_Data/Users.xml"));
>         XmlNode root = xmlDoc.DocumentElement;
>         XmlNode childNode = xmlDoc.SelectSingleNode("UsersList/user[id='"
> + txt_del_uid.Text + "']");
>         root.RemoveChild(childNode);
>         xmlDoc.Save(MapPath("~/App_Data/Users.xml"));
> Users.xml:
> <?xml version="1.0" encoding="utf-8"?>
> <UsersList>
>   <user>
>     <id>100</id>
>     <name>Suresh</name>
>     <password>Kothapally</password>
>   </user>
> </UsersList>

its taken from this link:

Hope it will help you out.

Faraz Shah Khan
8/9/2008 1:03:54 PM

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