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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="ReadXmlEfficient" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Literal id="XmlText" runat="server"></asp:Literal>
</div>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text;
using System.Xml;
public partial class ReadXmlEfficient : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string xmlFile = Server.MapPath("Data.xml");
XmlTextReader reader = new XmlTextReader(xmlFile);
StringBuilder str = new StringBuilder();
reader.ReadStartElement("DvdList");
while (reader.Read())
{
if ((reader.Name == "DVD") && (reader.NodeType == XmlNodeType.Element))
{
reader.ReadStartElement("DVD");
str.Append("<ul><b>");
str.Append(reader.ReadElementString("Title"));
str.Append("</b><li>");
str.Append(reader.ReadElementString("Director"));
str.Append("</li><li>");
str.Append(String.Format("{0:C}",Decimal.Parse(reader.ReadElementString("Price"))));
str.Append("</li></ul>");
}
}
reader.Close();
XmlText.Text = str.ToString();
}
}
File: Data.xml
<?xml version="1.0"?>
<DvdList>
<DVD ID="1" Category="Category 1">
<Title>title 1</Title>
<Director>directory 2</Director>
<Price>1</Price>
<Starring>
<Star>star 1</Star>
<Star>star 2</Star>
</Starring>
</DVD>
<DVD ID="2" Category="Category 2">
<Title>title 2</Title>
<Director>directory 2</Director>
<Price>2</Price>
<Starring>
<Star>star 3</Star>
<Star>star 4</Star>
</Starring>
</DVD>
</DvdList>
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