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Delete All XML Elements and Attributes Nodes

By Vijay Prativadi on October 17, 2012
Today, in this article let’s play around with one of the interesting and most useful concepts in XML in C#.
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Introduction

Today, in this article let's play around with one of the interesting and most useful concepts in XML in C#.

Question: What is deleting all XML Element/Attributes nodes?

In simple terms "It provides flexibility to delete all elements and attributes from XML and save the changes to the XML document." 

 

Step 1: Create a new "ASP.NET Web Application", as in:

 

Output1.jpg

Step 2: The complete code of Employee.xml looks like this:

 

<?xml version="1.0" encoding="utf-8"?>

<Employees>

  <Employee>

    <Id>1</Id>

    <FirstName>Vijay</FirstName>

    <LastName>Prativadi</LastName>

    <Age>26</Age>

  </Employee>

  <Employee>

    <Id>2</Id>

    <FirstName>Sandeep</FirstName>

    <LastName>Reddy</LastName>

    <Age>28</Age>

  </Employee>

</Employees>

 

Step 3: The complete code of webform1.aspx looks like this:

 

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="DeleteAllElementAttributesXMLApp._Default" %>

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head id="Head1" runat="server">

    <title></title>

</head>

<body>

    <form id="form1" runat="server">

    <center>

        <div>

            <table>

                <tr>

                    <td colspan="2" align="center">

                        <asp:Label ID="Label1" runat="server" Text="Delete All XML Elements/Attribute Nodes"

                            Font-Bold="true" Font-Size="Large" Font-Names="Verdana" ForeColor="Maroon"></asp:Label>

                    </td>

                </tr>

                <tr>

                    <td colspan="2" align="center">

                        <asp:Button ID="Button1" runat="server" Text="Delete Nodes" Font-Names="Verdana"

                            Width="213px" BackColor="Orange" Font-Bold="True" OnClick="Button1_Click" />

                    </td>

                </tr>

                <tr>

                    <td colspan="2" align="center">

                        <asp:Label ID="Label5" runat="server" Font-Bold="true" Font-Names="Verdana"></asp:Label>

                    </td>

                </tr>

            </table>

        </div>

    </center>

    </form>

</body>

</html>

 

Step 4: The complete code of webform1.aspx.cs looks like this:

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Xml;

namespace DeleteAllElementAttributesXMLApp

{

    public partial class _Default : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

        }

        protected void Button1_Click(object sender, EventArgs e)

        {

            XmlDocument document = new XmlDocument();

            document.Load(Server.MapPath("Employee.xml"));

            XmlNode objXNode = document.DocumentElement;

            objXNode.RemoveAll();

            document.Save(Server.MapPath("Employee.xml"));

            Label5.Text = "XML Elements/Attributes Deleted Successfully";

            Label5.ForeColor = System.Drawing.Color.Green;

        }

    }

}
 

Step 5: The output of the application looks like this:
 

Delete-All XML-Element-Attribut-s-Nodes.png
 

Step 6: The data deleted output of the application looks like this:
 

XML-Element-Attribut-s-Nodes.png
 

 Step 7: The complete code of Employee.xml looks like this:
 

<?xml version="1.0" encoding="utf-8"?>

<Employees>

</Employees>

I hope this article is useful for you.

 

Vijay Prativadi

Hey Everyone, It's Vijay. I am SDE mostly up on Microsoft Technologies. If you are thinking to know what I do mostly when at work. I get a chance to work upon few Microsoft technologies. All the way along my core tech... Read more

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