Modify XML Data using xPathDocument.

[Shailendrasinh Zala]

How can I Modify,Add and Delete XML Data using xPathDocument in C#.Net?
I want to add attribute and tag and child node.

Please Help me
its urgent.

[Cerebrus]

Use the XPathDocument.CreateNavigator to get an XPathNavigator object
that will allow you to move anywhere within the document. Then use the
Navigator's SetValue or any of the Append/Delete methods to modify all
you want.

[bixam.palsa]

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>

--
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[Shailendrasinh Zala]

Thanks
it is working perfectly.
you are great.

[Alex Itelman]

Please visit: http://alexitelman.110mb.com/index.htm

I've created a new forum there, you can post your topics there.

 

 

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[Shailendrasinh Zala]

I try do it with this code but still i found error.
= xmlPathNav.AppendChild("DataXml");=
but it generate error.

have you any solution.

On 9/21/07, Shailendrasinh Zala <syog...@gmail.com> wrote:

can you give me any example?

[Shailendrasinh Zala]

can you give me any example?

On 9/21/07, Cerebrus <zor...@sify.com> wrote: