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Microsoft Windows Workflow Foundation 4.0 Cookbook

By : Andrew Zhu

4 (7)

Microsoft Windows Workflow Foundation 4.0 Cookbook

4 (7)

By: Andrew Zhu

Overview of this book

Windows Workflow Foundation 4.0 (WF) is a significant part of .NET Framework 4.0. WF makes workflow technology available to every single programmer that uses the .NET Framework 4.0. It is easy to create long running and distributed programs using WF with the right knowledge. With this book, you will discover that working with workflows is easy. This book provides both step-by-step recipes and relevant background information. It covers all the important aspects of Windows Workflow Foundation 4.0. The best thing about this book is that all recipes are based on real-world experiences of Andrew Zhu. Andrew is a global WF and BizTalk technology support engineer for Microsoft. This book covers everything you need to know, when working with workflows. Get to grips with flow control activities, messaging, and transaction processes with easy to understand steps followed by explanations. You will quickly learn to use collection and custom WF activities and WF services.You will see recipes that illustrate integration of Windows Workflow with other applications such as WPF, ASP.NET, WCF service.Lastly, you will discover how easily you can customize W4 Designer with WF rule engine and others.

Microsoft Windows Workflow Foundation 4.0 Cookbook

Microsoft Windows Workflow Foundation 4.0 Cookbook

Credits

Credits

About the Author

About the Author

About the Reviewers

About the Reviewers

Foreword

Foreword

Preface

Preface

Free Chapter

Workflow Program

Workflow Program

Introduction

Creating the first WF program: HelloWorkflow

Creating a WF program using C# Code

Initializing a WF program using InArguments

Creating a WF program using OutArgument

Creating a WF program using InOutArgument

Using Variable in a WF program

Running a WF program asynchronously

Customizing a MyReadLine activity with Bookmark

Converting a WF program instance to XAML

Loading up a WF program from an XAML file

Testing a WF program with a unit test framework

Debugging a WF program

Built-in Flow Control Activities

Built-in Flow Control Activities

Introduction

Using the Foreach activity

A number guessing game in Sequence

A number guessing game using a flowchart

Using the InvokeMethod activity

Using the Switch<T> activity in Sequence workflow

Using the FlowSwitch<T> activity

Using the Parallel activity

Using the ParallelForEach<T> activity

Using the Pick activity

Handling errors

Messaging and Transaction

Messaging and Transaction

Introduction

Creating a pure WCF service

Receiving and replying to a WCF message

Receiving and replying to a WCF message in code workflow

Sending and receiving a reply to a WCF message

Sending and receiving a reply to a WCF message in code workflow

Using CancellationScope activity

Performing a transaction by using TransactionScope activity

Performing compensation by using Compensable activity

Performing manual compensation by using Compensate activity

Performing confirmation by using Confirm activity

Manipulating Collections

Manipulating Collections

Introduction

Printing collection items

Using AddToCollection<T> activity

Using ClearCollection<T> activity

Using RemoveFromCollection<T> activity

Using ExistsInCollection<T> activity

Custom Activities

Custom Activities

Introduction

Creating an activity by inheriting the root activity

Creating a FileWriter activity

Creating a SendEmail activity

Creating an Input Message activity using Bookmark

Creating an Asynchronous HTTP Get activity

Creating a Composite activity

Creating an Activity Designer for the SendEmail activity

Creating an Activity Designer for theMySquence activity

WF4 Extensions

WF4 Extensions

Introduction

Configuring ETW tracking

Creating FileTrackingParticipant

Configuring the SQL persistence store

Loading a persisted workflow from the database

Using a persistence participant to persist additional data

Using a customized extension

Hosting Workflow Applications

Hosting Workflow Applications

Introduction

Hosting a workflow service in IIS7

Hosting workflow in ASP.NET

Hosting workflow in WPF

Hosting workflow in a Windows Form

Custom Workflow Designer

Custom Workflow Designer

Introduction

Implementing designer layout

Implementing Toolbox, Workflow Designer, and Property Inspector views

Implementing New Workflow and Load Workflow events

Implementing Save and Save As events

Implementing XAML Workflow Tab and Run events

Implementing visual tracking

Index

Index

Customer Reviews

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About the Author

Andrew Zhu has six years of experience of software development and information technology: three years in Java, three years in .NET/C#. During these years, he designed and developed applications including computer language complier, SQL interpreter, Library book management application, online sale application based on JSF/Java, and SharePoint OA application. Two and half years ago he joined Microsoft. Since then, he has been helping developers solve IIS and BizTalk problems, developing .NET/Workflow/ASP.NET/SharePoint applications for his customers. Now, he is a Technology Support Engineer working in Microsoft (Microsoft Globe Tech Support Center), Shanghai. He has been supporting WF4 since its beta1 version.

No book is the product of just the author—he just happens to be the one with his name on the cover.

A number of people contributed to this book, and it would take more space than I have to thank each one individually.

I must thank my colleague Steven Cheng and Packt acquisition editor Rashmi Phadnis—without you, I wouldn't have a chance to write this book. Thanks to Packt Development Editor Dhwani and Project coordinator Leena. You two stayed with me throughout the writing process. I cannot imagine what could come out without your help. Also thanks to Technical Editor, cool Gaurav and Rukhsana Khambatta. My thanks also go to the Copy Editor of this title Sanchari Mukherjee.

I want to thank the reviewers of the book: Ryan Vice, Dave Newton, Geert van Horrik, and Ryan Andrus. Thanks for your patience and comments. Without your effort, the book would have been full of mistakes and incomplete.

I also want to thank my colleagues from Microsoft: XianFeng Zhang, Guang Yang, SGuy Ge, Steve Danielson, Nate Talbert, and Dan Glick. Thanks for your help in the WF and WCF 4.0 discussion list.

Finally, I want to thank my Mom and Dad, thanks for your love and understanding.

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