WF4.0实战宝典：70个微软工作流4.0解决方案

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《WF4.0 Cookbook 2010》是一本由Andrew Zhu编著的专业书籍，专注于Microsoft Windows Workflow Foundation 4.0（WF4.0）技术。这本书提供了超过70个实践性强、可以直接实施的菜谱式解决方案，旨在帮助读者深入了解和掌握WF4.0的工作流设计与开发。WF4.0是Microsoft Windows操作系统中的一个重要组件，它支持创建、管理和执行业务流程，通过图形化界面和代码结合的方式实现工作流程自动化。该书的内容涵盖了WF4.0的核心概念，包括但不限于工作流的设计原则，活动的创建与配置，服务引用的集成，以及如何利用 WF4.0的强大功能来构建可扩展和高效的业务流程。书中不仅提供了理论知识，还配以丰富的示例代码和详细的步骤，使得读者能够在实际项目中迅速上手和应用。在阅读过程中，读者可以学习到如何编写工作流活动，如何处理工作流的执行逻辑，如何实现任务分配和协作，以及如何利用WF4.0与其他Microsoft技术（如WCF、ADO.NET等）的整合。此外，书中还可能探讨了工作流的最佳实践、性能优化、错误处理和安全策略等相关主题。版权方面，《WF4.0 Cookbook 2010》受到Packt Publishing严格的版权保护，未经出版商书面许可，不得复制、存储或以任何形式传播内容，除非用于学术引用。尽管作者和出版社已经尽最大努力确保信息的准确性，但本书提供的所有信息均按现状销售，不提供任何形式的保证，包括明示或暗示的保证。通过这本书，无论是对WF4.0新手还是有经验的开发者，都能找到提升工作流管理技能的宝贵资源。无论是希望扩展业务流程自动化能力的IT专业人士，还是希望通过WF4.0进行项目开发的软件工程师，都可以从中受益匪浅。在下载或购买此书后，读者将获得一个实用且深入的WF4.0工具箱，助力他们在工作流开发领域取得成功。

Preface

WF4 is a process engine, as well as a visual program language, shipped along with Microsoft

.NET Framework 4.0. Traditionally, when we design a long-running application, we break

a large application into lots of small code blocks to address the business logic and use a

database to store the intermediate data. With the growing complexity of logic, managing code

blocks and authoring logic workows becomes difcult. Now, with WF4, we can design and

create distributed, long-running programs easily.

The aim of this book is to provide a step-by-step guide to help us start WF4 programming.

Every recipe in this book is runnable.

What this book covers

Chapter 1, Workow Program, provides recipes that will help us understand basic information

about WF4 programming.

Chapter 2, Built-in Flow Control Activities, provides recipes that demonstrate the usage of the

built-in control activities.

Chapter 3, Messaging and Transaction, provides recipes that demonstrate how to send and

receive WCF messages in workow. The second part of this chapter focuses on applying

transactions in a workow program.

Chapter 4, Manipulating Collections, demonstrates how to manipulate collection data in

workow programs with WF4 built-in activities.

Chapter 5, Custom Activities, demonstrates how to create our own custom activities; the most

powerful unit of workow.

Chapter 6, WF4 Extensions, demonstrates how to use the built-in extensions such as

persistence and tracking, and also how to create our own extensions.

Download from Wow! eBook <www.wowebook.com>

Preface

Chapter 7, Hosting Workow Applications, mainly explains how to host workow applications

in IIS7. This chapter also provides recipes that demonstrate host workow in ASP.NET, WPF,

and Windows Forms.

Chapter 8, Custom Workow Designer, helps us create our own WF4 workow designer with

visual tracking function.

What you need for this book

We need a PC having Windows Vista/7/2008/2008R2. We can also use Windows XP, but it

is not recommended. .NET Framework 4.0 is a must. Once we install .NET Framework 4.0, we

can run workow applications. To develop WF4 workow applications, we should also have

Visual Studio 2010 installed on our computer. To host WF4 as a WCF service in IIS, we should

install IIS7/7.5 in our computer.

Who this book is for

If you nd yourself working with Windows Workow Foundation 4.0 and you have basic

knowledge of C#/.NET Framework/VB and workow, this book is for you. It will be best if you

know both C# and VB, because WF 4.0 expressions can be written only in VB (at the time of

writing). With this book, you will be able to enhance your applications with exible workow

capabilities using WF 4.0. To follow the recipes, you will need to be comfortable with .NET

Framework, C# programming, and the basics of SOA and how to develop them.

Conventions

In this book, you will nd a number of styles of text that distinguish between different kinds of

information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "The ActivityLibrary project is for all customized

activities, whereas the WorkflowConsoleApp project is used for testing our customized

activities".

A block of code will be set as follows:

class Program {

static void Main(string[] args) {

WorkflowInvoker.Invoke(GetCodeStyleWorkflow());

}

Any command-line input or output is written as follows:

.NET Framework 4 Full (32-bit) – silent repair

%windir%\Microsoft.NET\Framework\v4.0.30319\SetupCache\Client\setup.exe /

repair /x86 /x64 /ia64 /parameterfolder Client /q /norestart

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WF4.0实战宝典：70个微软工作流4.0解决方案

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