或许您认为自己对ASPNET已经相当了解，请再考虑一下。这本卓然不群的指南为使用ASPNET 3.5和其他前沿微软技术构建网站提供了大师级课程指导。它教您如何开发坚若磐石的Web门户应用程序，每天能够承受数百万次的点击，同时确保应对扩展性和安全性的压力。这些程序不仅可以用于面向大众消费群体的主页，也可用于企业发布高效内容聚合的消息板(dashboard)。

Pageflakes的创始人和首席技术官Omar AL Zabir所著的这本《ASP.NET 3.5构建Web 2.0门户网站》展示了如何使用ASP.NET 3.5、ASE.NET AJAX、Windows Workflow Foundation、LINQ和.NET 3.5来开发类似于My Yahoo!、iGoogle和Pageflakes的门户站点。在书中，AL Zabir构建了一个支持Ajax的开源门户原型(可以通过网址WWW.dropthings.com找到)，并且向您一一讲解设计和架构中面临的挑战、高级Ajax概念、性能优化技巧和服务器端扩展性问题。  通过本书您将学到：实现一个高度松耦合的架构，紧跟流行的n层结构和基于构件的应用程序模型、提供拖放功能，并且使用ASE.NET 3.5构建Web软件层的服务器端、运用LINQ建立数据访问层，并使用Windows Workflow Foundation建立作为工作流集合的业务逻辑层、使用JavaScript开发客户端构件以获得更快的性能和更好的缓存效果、发挥ASP.NET AJAX框架的最大效能以获得速度更快、具有更多动态效果和更好可扩展性的站点、构建一个客户Web服务调用句柄以克服ASENET AJAX 1.0的缺点，从而得到异步、支持事务处理和缓存友好的网络服务。

Preface

 1. Introducing Web Portals and Dropthings.com

Defining a Web Portal

Defining a Web 2.0 Portal

Using a Web Portal

Navigating Dropthings

Using ASP.NET AJAX

Using C# 3.0 and .NET 3.5

Summary

 2. Architecting the Web Portal and Widgets

Using a Widget Framework

Adding Widgets

Maximizing the First-Visit Experience

Rendering a Second-Visit Experience

Improving ASP.NET AJAX Performance

Adding Authentication and Authorization

Preventing Denial-of-Service Attacks

Summary

 3. Building the Web Layer Using ASP.NET AJAX

Implementing the Start Page of a Web Portal

Building a Custom Drag-and-Drop Extender for a Multicolumn Drop Zone

Implementing WidgetContainer

Building Widgets

Page Switching: Simulating a Nonpostback Experience

Using the Profile Object Inside a Web Service

Implementing Authentication and Authorization

Implementing Logout

Summary

 4. Building the Data and Business Layers Using .NET 3.5

Introducing LINQ to SQL

Building the Data Access Layer Using LINQ to SQL

Introducing Windows Workflow Foundation

Building the Business Layer Using WF

Implementing the DashboardFacade

Summary

 5. Building Client-Side Widgets

Delaying Server-Side Widget Loading

Content Proxy

Building a Client-Side RSS Widget

Building a Client-Side Flickr Widget

Summary

 6. Optimizing ASP.NET AJAX

Combining Multiple Ajax Calls into One Call

Timing and Ordering Ajax Calls to the Server

Using HTTP GET Calls Instead of HTTP POST

Working with the this Function

Summary

 7. Creating Asynchronous, Transactional, Cache-Friendly Web Services

Scalability Challenges with Web Services

Asynchronous Web Methods

Modifying the ASP.NET AJAX Framework to Handle Web Service Calls

Developing Your Own Web Service Handler

Making an Asynchronous and Cache-Friendly Proxy

Scaling and Securing the Content Proxy

Summary

 8. Improving Server-Side Performance and Scalability

Instrumenting Your Code to Identify Performance Problems

Optimizing the HTTP Pipeline

Optimizing ASP.NET 2.0/3.5 Before Going Live

Optimizing Queries in the ASP.NET Membership Tables

Optimizing the ASP.NET 2.0/3.5 Profile Provider Before You Go Live

ASP.NET Production Challenges

Redirecting Traffic from an Old Web Site to a New One

Summary

 9. Improving Client-Side Performance

Understanding Web Caching

Content Delivery Networks

Optimizing Internet Explorer JavaScript Performance

Reducing the Web Service Call Payload

Loading the UI on Demand

Using Read-Ahead Caching for Ajax Calls

Hiding HTML Inside <textarea>

Summary

 10. Solving Common Deployment, Hosting, and Production Challenges

Deploying Your Web Site in a Web Farm

Thirteen Production Disasters That Could Happen at Anytime

Choosing the Right Hosting Provider

Choosing a Web Site Monitoring Tool

Configuring Proper Performance Counters

Summary

Index