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Create Pull Insert XML Data Out From Scratch

Posted by Vijay Prativadi Articles | XML October 16, 2012
Today, in this article let’s play around with one of the interesting and most useful concepts in XM 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 create/pull/insert XML data out from scratch?

In simple terms "It provides flexibility to create a new XML structure, select the data from the created structure and insert new elements to that structure."

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

Output1.jpg
 

Step 2: Add a new XML file item to the project and name it as Employee.xml.

 

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

 

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

                        <asp:Label ID="Label1" runat="server" Text="Create/Insert/Pull XML Data Out from scratch"

                            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="Create XML Data" Font-Names="Verdana"

                            Width="213px" BackColor="Orange" Font-Bold="True" OnClick="Button1_Click" Style="margin-top: 5%" />

                    </td>

                </tr>

                <tr>

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

                        <asp:Button ID="Button2" runat="server" Text="Select Data" Font-Names="Verdana" Width="213px"

                            BackColor="Orange" Font-Bold="True" OnClick="Button2_Click" Style="margin-top: 5%" />

                    </td>

                </tr>

                <tr>

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

                        <br />

                        <asp:GridView ID="GridView1" runat="server" BackColor="LightGoldenrodYellow" BorderColor="Tan"

                            BorderWidth="1px" CellPadding="2" EnableModelValidation="True" ForeColor="Black"

                            GridLines="None" AutoGenerateColumns="False">

                            <AlternatingRowStyle BackColor="PaleGoldenrod"></AlternatingRowStyle>

                            <FooterStyle BackColor="Tan"></FooterStyle>

                            <HeaderStyle BackColor="Tan" Font-Bold="True"></HeaderStyle>

                            <PagerStyle HorizontalAlign="Center" BackColor="PaleGoldenrod" ForeColor="DarkSlateBlue">

                            </PagerStyle>

                            <SelectedRowStyle BackColor="DarkSlateBlue" ForeColor="GhostWhite"></SelectedRowStyle>

                            <Columns>

                                <asp:BoundField DataField="Id" HeaderText="Id" ReadOnly="true" />

                                <asp:BoundField DataField="FirstName" HeaderText="First Name" />

                                <asp:BoundField DataField="LastName" HeaderText="Last Name" />

                                <asp:BoundField DataField="Age" HeaderText="Age" />

                            </Columns>

                        </asp:GridView>

                    </td>

                    <td colspan="3">

                        <fieldset>

                            <legend>Insert XML Data</legend>

                            <table>

                                <tr>

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

                                        <asp:Label ID="Label2" runat="server" Text="Insert XML Data" Font-Bold="true" Font-Size="Large"

                                            Font-Names="Verdana" ForeColor="Maroon"></asp:Label>

                                    </td>

                                </tr>

                                <tr>

                                    <td>

                                        <asp:Label ID="Label7" runat="server" Text="Please Enter Id" Font-Size="Large" Font-Names="Verdana"

                                            Font-Italic="true"></asp:Label>

                                    </td>

                                    <td>

                                        <asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>

                                    </td>

                                </tr>

                                <tr>

                                    <td>

                                        <asp:Label ID="Label3" runat="server" Text="Please Enter FirstName" Font-Size="Large"

                                            Font-Names="Verdana" Font-Italic="true"></asp:Label>

                                    </td>

                                    <td>

                                        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

                                    </td>

                                </tr>

                                <tr>

                                    <td>

                                        <asp:Label ID="Label4" runat="server" Text="Please Enter LastName" Font-Size="Large"

                                            Font-Names="Verdana" Font-Italic="true"></asp:Label>

                                    </td>

                                    <td>

                                        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>

                                    </td>

                                </tr>

                                <tr>

                                    <td>

                                        <asp:Label ID="Label6" runat="server" Text="Please Enter Age" Font-Size="Large" Font-Names="Verdana"

                                            Font-Italic="true"></asp:Label>

                                    </td>

                                    <td>

                                        <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>

                                    </td>

                                </tr>

                                <tr>

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

                                        <asp:Button ID="Button3" runat="server" Text="Insert XML Data" Font-Names="Verdana"

                                            Width="213px" BackColor="Orange" Font-Bold="True" OnClick="Button3_Click" />

                                    </td>

                                </tr>

                            </table>

                        </fieldset>

                    </td>

                </tr>

                <tr>

                    <td colspan="4" 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 Default.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;

using System.Xml.Linq;

namespace CreateXMLApp

{

    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 xmlDoc = new XmlDocument();

            XmlDeclaration dec = xmlDoc.CreateXmlDeclaration("1.0", null, null); xmlDoc.AppendChild(dec);

            XmlElement rootEmployeesElement = xmlDoc.CreateElement("Employees");

            xmlDoc.AppendChild(rootEmployeesElement);

            XmlElement employeeElement = xmlDoc.CreateElement("Employee");

            XmlElement idElement = xmlDoc.CreateElement("Id");

            idElement.InnerText = "1"; XmlElement firstNameElement = xmlDoc.CreateElement("FirstName");

            firstNameElement.InnerText = "Vijay"; XmlElement lastNameElement = xmlDoc.CreateElement("LastName");

            lastNameElement.InnerText = "Prativadi";

            XmlElement ageElement = xmlDoc.CreateElement("Age");

            ageElement.InnerText = "26"; employeeElement.AppendChild(idElement);

            employeeElement.AppendChild(firstNameElement); employeeElement.AppendChild(lastNameElement);

            employeeElement.AppendChild(ageElement);

            rootEmployeesElement.AppendChild(employeeElement);

            xmlDoc.Save(@"c:\users\administrator\documents\visual studio 2010\Projects\CreateXMLApp\CreateXMLApp\Employee.xml");

            Label5.Text = "XML Created Sucessfully"; Label5.ForeColor = System.Drawing.Color.Green;

        }

        protected void Button2_Click(object sender, EventArgs e)

        {

            XDocument document = XDocument.Load(@"C:\Users\Administrator\documents\visual studio 2010\Projects\CreateXMLApp\CreateXMLApp\Employee.xml");

            var query = from r in document.Descendants("Employee") select new

            {

                Id = r.Element("Id").Value, LastName = r.Element("LastName").Value, FirstName = r.Element("FirstName").Value, Age = r.Element("Age").Value };

            GridView1.DataSource = query;

            GridView1.DataBind();

        }

        protected void Button3_Click(object sender, EventArgs e)

        {

            if (string.IsNullOrEmpty(TextBox4.Text) || string.IsNullOrEmpty(TextBox1.Text) || string.IsNullOrEmpty(TextBox2.Text) || string.IsNullOrEmpty(TextBox3.Text))

            {

                Label5.Text = "Please Enter Some Values";

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

            }

            else

            {

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

                document.Element("Employees").Add(new XElement("Employee", new XElement("Id", TextBox4.Text), new XElement("FirstName", TextBox1.Text), new XElement("LastName", TextBox2.Text), new XElement("Age", TextBox3.Text)));

                document.Save(Server.MapPath("Employee.xml")); Label5.Text = "Data Inserted Successfully";

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

                TextBox4.Text = string.Empty;

                TextBox1.Text = string.Empty;

                TextBox2.Text = string.Empty;

                TextBox3.Text = string.Empty;

            }

        }

    }

}
 

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

Output2.jpg
 

Step 6: The output of creating new XML structure looks like this:
 

Output3.png
 

Step 7: The output of created new XML structure looks like this:

 

<?xml version="1.0"?>

<Employees>

  <Employee>

    <Id>1</Id>

    <FirstName>Vijay</FirstName>

    <LastName>Prativadi</LastName>

    <Age>26</Age>

  </Employee>

</Employees>
 

Step 8: The output of selecting data from XML structure looks like this:
 

Output4.png
 

Step 9: The output of inserting data to XML structure looks like this:
 

Output5.png
 

Step 10: The output of selecting data from XML structure looks like this:
 

Output6.png
 

Step 11: The output of inserted data to XML structure 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>Swetha</FirstName>

    <LastName>Prativadi</LastName>

    <Age>23</Age>

  </Employee>

</Employees>


I hope this article is useful for you.

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