Silverlight与Blend 4实战指南

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"Foundation Expression Blend 4 with Silverlight是Victor Gaudioso撰写的一本关于使用Expression Blend 4开发Silverlight应用程序的实战指南。本书旨在通过实际操作练习帮助读者掌握Silverlight和Blend 4的新特性，从而创建出适用于网站的现实世界应用。" 在这本书中，作者深入探讨了以下关键知识点： 1. **Silverlight基础**：Silverlight是Microsoft开发的一个跨平台、跨浏览器的插件，用于在网页上创建丰富的交互式媒体和图形体验。Silverlight 4作为其第四代版本，带来了更多功能和性能提升，如增强的文本处理、更好的多媒体支持、以及对桌面应用程序特性的集成。 2. **Expression Blend 4**：作为Microsoft Expression套件的一部分，Blend 4是一个设计工具，它为开发者和设计师提供了直观的界面来创建和设计Silverlight项目。Blend 4新增了大量改进，如支持Visual Studio 2010集成、改进的动画工具和行为库，以及更强大的数据绑定和模板编辑功能。 3. **实战演练**：书中通过一系列实际操作练习，读者可以学习如何使用Blend 4创建用户界面、设计动态布局、实现交互性以及应用视觉特效。这些练习涵盖了从基本元素到复杂控件的使用，有助于读者快速上手并熟悉开发流程。 4. **新特性解析**：书中详细介绍了Silverlight 4和Blend 4的新特性，如Out-of-Browser（OOB）支持，使得应用程序可以像桌面应用一样离线运行；数据绑定增强，简化了与后端服务的数据交互；以及更丰富的控件集，如富文本编辑器和RIA服务集成。 5. **图形与动画**：读者将学习如何使用Blend 4的绘图工具创建自定义矢量图形，并利用Timeline和Storyboard系统制作复杂的动画效果，为应用程序增添生动性和吸引力。 6. **用户体验设计**：书中的内容还强调了如何通过Blend 4优化用户体验，包括使用样式和模板进行UI一致性设计，以及使用行为库（Behaviors）和触发器（Triggers）实现用户交互逻辑。 7. **集成开发环境**：除了Blend 4，书中也会讲解如何与Visual Studio 2010协同工作，实现设计与编码的无缝集成，这对于开发者来说至关重要，因为它提高了开发效率和团队合作能力。 8. **版权和商标信息**：书籍的版权和商标声明表明，虽然书中可能涉及了多个品牌和图像，但所有使用均限于教育和说明目的，无意侵犯任何商标权。《Foundation Expression Blend 4 with Silverlight》是一本全面介绍如何使用最新工具和技术开发高效、吸引人的Silverlight应用的教材，适合初学者和有一定经验的开发者。通过阅读和实践，读者可以掌握创建高质量Web应用程序的关键技能。

CONTENTS

xiv

About the Cover Image Designer

Corné van Dooren designed the front cover image for this book. Having been given

a brief by friends of ED to create a new design for the Foundation series, he was

inspired to create this new setup combining technology and organic forms.

With a colorful background as an avid cartoonist, Corné discovered the infinite world

of multimedia at the age of 17—a journey of discovery that hasn’t stopped since. His

mantra has always been: “The only limit to multimedia is the imagination,” a mantra

that is keeping him moving forward constantly.

After enjoying success after success over the past years—working for many

international clients, as well as being featured in multimedia magazines, testing

software, and working on many other friends of ED books—Corné decided it was time to take another step

in his career by launching his own company, Project 79, in March 2005.

You can see more of his work and contact him through www.cornevandooren.com or

www.project79.com.

If you like his work, be sure to check out his chapter in New Masters of Photoshop: Volume 2 (friends of

ED, 2004).

INTRODUCTION

xvi

Introduction

Welcome to Foundation Expression Blend 4 with Silverlight! I am very excited about this, my third book, as

I have been able to take all the lessons learned from my first two books and make a book that I think really

can take the reader from a beginner in Silverlight to someone who is ready to enter the job market as a

junior Silverlight developer. After you have completed this book, you will have ten or so Silverlight projects

that you can add to your professional portfolio and build upon in your own work. Further, you will have an

all-around understanding of how Silverlight works, from the improved designer/developer workflow, to

content controls, to custom UserControls, to Behaviors, and even the all-powerful MediaElement.

Follow along as I take you from setting up the Silverlight development environment to creating your own

Rich Internet Applications (RIAs) complete with video, Animations, and dazzling graphics. And if at any

time you get stuck or lost, I invite you to shoot me an e-mail at my personal address:

wpfauthor@gmail.com. Teaching Silverlight is not something I do for money, it is my passion; if you have

the same passion to learn it as I have to teach it, I promise you that I will do all I can to facilitate your

becoming a knowledgeable Silverlight developer. So roll up your sleeves, and let’s dive into Blend 4 and

Silverlight!

Who this Book Is For

Throughout my career, I have purchased many technological publications just to realize that I was not part

of the target audience for that particular book. In order to help potential readers avoid this situation, I will

outline exactly who this book is for. This book is for you if you know the basics of Object-Oriented

Programming (OOP) and have some programming experience in languages such as JavaScript,

ActionScript, C++, Visual Basic, Java, or C, but have not used Silverlight. If you understand even just a

little about OOP, you can benefit from this book and start to develop in Silverlight; however, if you do not

have any experience in any of these languages, I suggest you buy a beginner’s guide on C# first.

Beginning C# 2008: From Novice to Professional, Second Edition, by Christian Gross (Apress, 2008), is a

good book and will give you far more information than you will need to make good use of the title in your

hands. An extra added skill would be experience with XML (Extensible Markup Language), as it is what a

large part of Silverlight is based upon, including XAML (Extensible Application Markup Language).

However, this isn’t essential, as in this book I assume you know as little as possible, and I start off with the

basics before leading you through more advanced tutorials.

What this Book Will Teach You

The following is a list of exactly what this book will teach you so that you know what you will be able to

accomplish in Silverlight and Blend once you have completed the book. You will

• Understand the typical Silverlight/Blend/Visual Studio workflow for creating Silverlight

applications

• Understand the Blend 4 IDE—what tools are available and how to use them properly

• Understand XAML and C# basics, as well as some advanced C# constructs such as a

CLRInstance of a DataFactory and a very popular user interface design pattern called

Model-View-ViewModel (MVVM)

• Know the basic Silverlight content element controls

INTRODUCTION

xvii

•

Understand the very powerful Silverlight MediaElement and how to use it to create video and

audio for your applications

• Learn how to create reusable styles and control templates

• Learn how to raise events and EventHandlers

• Learn about Behaviors: how to use them and create them

• Learn how to create an interactive prototype of a web application called a SketchFlow

• Understand the difference between Timelines and Storyboards, and learn how to use

Timelines to create complex Storyboard Animations

• Learn about the new features of Silverlight 4, including the Webcam and COM APIs

What Are Silverlight/Blend 4, C#, and XAML?

Silverlight has a large number of framework elements and controls, including Button, Grid, and

MediaElement. These are all written in XAML, which is an XML-based markup language. XAML also

enables you to create Storyboard Animations. The user interface controls can be controlled partially in

XAML using Storyboards, but for the most part they are controlled with C#. This type of structure is very

similar to the relationship between HTML and JavaScript, as HTML displays the content, whereas

JavaScript adds functionality and interactivity, such as mouse-over effects. Conversely, user interface

controls can be created in C#, but are most often created in XAML. XAML can also display assets such as

images, audio, and video. C# is a very robust Object-Oriented Programming language developed by

Microsoft, and is part of the .NET 4.0 Framework. I like to think of XAML as the pretty exterior of a cool car,

and C# as the powerful engine under the hood. So, the typical way that Silverlight creates and displays

content goes like this:

1. XAML describes how the controls, images, video, and other assets are shown.

2. C# gives these assets their functionality.

3. The compiler then puts the XAML user interface and functionality together into an executable

(EXE) file for a Silverlight desktop or web application.

4. The browser or desktop then displays the application.

The real power of Silverlight is the robustness of C# and the capability of using XAML to create the

interface.

Using Visual Studio and Blend

C# is usually created and edited in Visual Studio 2010, and XAML can be edited in both Blend and Visual

Studio 2010. Since Blend 3, though, you have the ability to create and edit C# in Blend as well as Visual

Studio 2010, and this ability has been enhanced in Blend 4. However, you may still want to edit or create

your C# code in Visual Studio, because Visual Studio has tools to assist in writing code, such as

Intellisense (discussed later in the book).

Blend, on the other hand, is a new instrument that allows you to create and display Silverlight assets such

as controls and images in code or visually. The Selection, Brush Transform, and various shape tools are

just a few of the features that Blend offers the developer. I go into these and other tools in Chapter 2, and

you will master these development tools in later chapters.

INTRODUCTION

xviii

What Silverlight Is and How It Differs from WPF

Silverlight, formerly known as Windows Presentation Foundation Everywhere (WPF/E), is a cross-platform

version of WPF. Basically, it is a subset of WPF that can run on a Mac or a PC. WPF can only run on

Windows 7, Windows Vista, or Windows XP with .NET 3.0 or later installed (Windows XP ships with .NET

2.0). There are other differences, but most important is that WPF can make use of 3D objects, whereas

Silverlight can do some faking of 3D, but it’s not true 3D. This is because WPF can make use of the host

machine’s graphics card, and Silverlight cannot, as it is difficult to port 3D hardware acceleration across

different platforms. The final difference is that Silverlight integrates right into an HTML page by using the

Silverlight browser plug-in, whereas WPF needs to be inserted into an iframe to mix with HTML content. It

is worth noting that now Silverlight can also run Out Of Browser (OOB).

Online Resources

Throughout this book, I point you to online Silverlight examples I have created, as well as code snippets

and video tutorials. Currently I have some 50 or so Silverlight video tutorials that can all be found on the

following blog post: www.windowspresentationfoundation.com/?p=587. At the end of each chapter I

often point you to a specific video tutorial that will help broaden your understanding of the subject matter

we just went over.

Layout conventions

To keep this book as clear and easy to follow as possible, the following text conventions are used

throughout:

• Important words or concepts are normally highlighted on the first appearance in italics.

• Code is presented in fixed-width font, as are the names of most objects, controls,

properties, and classes.

New or changed code is presented in bold fixed-width font.

• Menu commands are written in the form Menu  Submenu  Submenu.

• Where I want to draw your attention to something, I’ve highlighted it like this:

Ahem, don’t say I didn’t warn you.

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