default.aspx.cs

對c#初學者參考..為課題asp.net 2.0教材代碼

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

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //Load document
        string booksFile = Path.Combine(Request.PhysicalApplicationPath, "books.xml");

        XPathDocument document = new XPathDocument(booksFile);
        XPathNavigator nav = document.CreateNavigator();

        //Add a namespace prefix that can be used in the XPath expression
        XmlNamespaceManager namespaceMgr = new XmlNamespaceManager(nav.NameTable);
        namespaceMgr.AddNamespace("b", "http://example.books.com");

        //All books whose price is not greater than 10.00
        foreach (XPathNavigator node in
            nav.Select("//b:book[not(b:price[. > 10.00])]/b:price",
            namespaceMgr))
        {
            Decimal price = (decimal)node.ValueAs(typeof(decimal));
            Response.Write(String.Format("Price is {0}<BR/>",
                price));
        }
    }

}