<%@ Page Language="C#" AutoEventWireup="true"
CodeBehind="ContentLoader.aspx.cs" Inherits="HomeSite.ContentLoader" %>
<html xmlns="https://www.w3.org/1999/xhtml">
<head runat="server">
<title>ContentLoader</title>
<style type="text/css">
.contentsBody { margin:0; overflow:hidden; }
.contentsTable { width:100%; height:92%; valign:top;
cellspacing:0; cellpadding:0; border:0 }
.contentsIframe { height:100%; width:100%; marginwidth:0;
marginheight:0; scrolling:auto }
</style>
</head>
<body>
<table>
<tr>
<td>
<asp:Literal
runat="server"></asp:Literal>
</td>
</tr>
</table>
</body>
</html>
真正神奇的地方是css代码，我设置body 的margin 为0，设置overflow 为hidden。防止scrollbars 出现在页面的body上。
IFRAME的scrolling设置为auto，因此，如果需要滚动条，也只有IFRAME提供给它。因为在IFRAME的周围有大量不好看的空白空间，将margins 也设置为0，IFRAME的height和width被设置成100%，来确保网页内容占尽可能多的空间。请注意html标签中使用了Literal控件。正如你将看到以下的隐藏代码， 使用Literal的目的是允许后台代码注入东西到IFRAME元素中，它能构建了正确的querystring的ID和Path参数。
代码
复制代码 代码如下:
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;
namespace HomeSite
{
/// <summary>
/// Content Loader code behind class
/// </summary>
public partial class ContentLoader : System.Web.UI.Page
{
/// <summary>
/// On Page Load we need to capture query string parameters, construct
/// an IFRAME element, and inject the IFRAME element into our Literal control
/// </summary>
/// <param></param>
/// <param></param>
protected void Page_Load(object sender, EventArgs e)
{
string id = "";
string path = "";
// Validate we have valid querystring parameters
// namely "ID" and "Path"
if (HasValue(Request["ID"]) &&
HasValue(Request["Path"]))
{
// Set our local variables
id = Request["ID"].Trim().ToString();
path = Request["Path"].Trim().ToString();
// Prepend the path URL with if needed
if (!path.ToLowerInvariant().StartsWith("http://"))
path = "http://" + path;
// Construct the IFRAME element and set the Text value of the Literal control
Literal1.Text = "<iframe class=https://www.jb51.net/article/\"contentsIframe\" " +
"id=https://www.jb51.net/article/\"contentFrame" + id + "https://www.jb51.net/article/\" " +
"frameborder=https://www.jb51.net/article/\"0\" src=https://www.jb51.net/article/\"" + path +
"https://www.jb51.net/article/\"></iframe>";
}
else
{
// Either query parameter or both are not set or do not
// exist (not passed as request parameters)
Literal1.Text = "<span id=https://www.jb51.net/article/\"contentFrame\">An " +
"error occurred while attempting to load a web page.</span>";
}
}
/// <summary>
/// Simple static class used to validate the value of querystring
/// parameter is not null or an empty string
/// </summary>
/// <param>The object to check</param>
/// <returns>Returns true if the object (string)
/// has a value; false otherwise.</returns>
public static bool HasValue(object o)
{
if (o == null)
return false;
if (o is String)
{
if (((String) o).Trim() == String.Empty)
return false;
}
return true;
}
}
}
只要你将querystring的ID和Path参数传递给它，装载的页面能够单独的运行。通过VS2005浏览网页，有URL的示例：:49573/ContentLoader.aspx?ID=1234&Path=www.amazon.com.
复制代码 代码如下:
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.Text;
namespace HomeSite
{
/// <summary>
/// Tab configuration static handling class
/// </summary>
public static class TabConfiguration
{
/// <summary>
/// This class returns a collection of TabDefinition classes created from
/// parsing the tab definitions defined in the TabConfig.xml file.
/// </summary>
/// <param name"page">The Page reference
/// calling this class</param>
/// <returns>ArrayList of TabDefinition classes</returns>
public static ArrayList LoadConfiguration(Page page)
{
// Local container for tab definitions
ArrayList tabList = new ArrayList();