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CS page code

using System;
using System.IO;
using System.Xml;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        int bookcount = 0;
        XmlReaderSettings settings = new XmlReaderSettings();

        settings.IgnoreWhitespace = true;
        settings.IgnoreComments = true;

        string booksFile = Server.MapPath("books.xml");
        using (XmlReader reader = XmlReader.Create(booksFile, settings))
        {
            while (reader.Read())
            {
                if (reader.NodeType == XmlNodeType.Element &&
                        "book" == reader.LocalName)
                {
                    bookcount++;
                }
            }
        }
        Response.Write(String.Format("Found {0} books!", bookcount));
    }
}

books.xml

<?xml version='1.0'?>

<!-- This file is a part of a book store inventory database -->

<bookstore xmlns="http://example.books.com">

    <book genre="autobiography" publicationdate="1981" ISBN="1-861003-11-0">

        <title>The Autobiography of Benjamin Franklin</title>

        <author>

            <first-name>Benjamin</first-name>

            <last-name>Franklin</last-name>

        </author>

        <price>8.19</price>

    </book>

    <book genre="novel" publicationdate="1967" ISBN="0-201-63361-2">

        <title>The Confidence Man</title>

        <author>

            <first-name>Herman</first-name>

            <last-name>Melville</last-name>

        </author>

        <price>12.99</price>

    </book>

    <book genre="philosophy" publicationdate="1991" ISBN="1-861001-57-6">

        <title>The Gorgias</title>

        <author>

            <first-name>Sidas</first-name>

            <last-name>Plato</last-name>

        </author>

        <price>9.91</price>

    </book>

</bookstore>

ALL, asp.net, asp.net 4.0, XML asp.net 4, asp.net, xml

Below is the simple line code in which i have told you how to read window registry.

RegistryKey key = Registry.LocalMachine
.OpenSubKey(ConfigurationManager
.AppSettings["LocalRootRegKey"]
.ToString(), true);

ALL window registry

you can download free 90 days trial editions of Visual Studio 2010 from microsoft site.Link is given below.

http://www.microsoft.com/visualstudio/en-us/download

ALL, asp.net asp.net, visual studio 2010, download

you can download asp.net paypay payment module from below given reference link

http://www.codeproject.com/KB/aspnet/UsePayPalPaymentInASPNET.aspx

ALL, asp.net paypal

First create a class with name ListItem. ListItem class have two members named name and value, which send and receive  string arrary

public class ListItem
    {
        private string[] name;
        public string[] Name
        {
            get { return name; }
            set { name = value; }
        }
 
        private string[] _value;
        public string[] _Value
        {
            get { return _value; }
            set { _value = value; }
        }
    }

On Page Load

protected void Page_Load(object sender, EventArgs e)
        {             

            string JSONString = "{\"Name\":[\"Aamir\",\"Hasan\",\"Awais\",\"Ahmed\",\"Saba",\"Sobia\""],"
                          + "\"_Value\":[\"0x1\",\"0x2\",\"0x3\",\"0x4\",\"0x5\",\"0x6\"]}";            

            ListItem _Items = JsonConvert.DeserializeObject(JSONString);
            for (int i = 0; i < dropdownlistJsonItem.NAAM.Length; i++)
            {
                this.DropDownList1.Items.Add(new ListItem(_Items.Name[i], Items._Value[i]));
            }
        }

On aspx Page drag and drop Downdown List control as shown below

 <asp:DropDownList ID="DropDownList1" runat="server" /> 
      

ALL, asp.net json, server control, dropdownlist, asp.net