big? Something will happen?.? ? From the Foreword by Don Box, Architect, Microsoft Corporation ? If I were writing a Workflow book, this is what I wrote. Also, I love how the authors discuss the underlying architecture, enabling me to gain a deep understanding truly efficient technologies to design and build their own projects.? Jeffrey Richter? (Http: / / Wintellect.com) explicit support? for lightweight workflow within the framework of a major contribution. Dharma Shukla and Bob Schmidt present the workflow technology under and accessed by the new workflow foundation in order to NET 3.0., And they do so in a way that is not authoritative and approachable which is really fun.? Clemens Szyperski?, Software architect, Microsoft Corporation combine? Windows Workflow Technology declarative programming and state machines in the rich and powerful in a way that is, which surely will have a major influence on how we program in the coming years. Don? T lag.? ? Joe Duffy, program manager, Common Language Runtime (CLR) team, Microsoft Corporation do you think? I WF should and will be used as the main application model for web services applications. Developers working on web services will want to learn about technology from this book, which comes directly from the source and explains the technology well and in depth.? Krzysztof Cwalina?, Program manager, Microsoft Corporation provide this? Books enlightening exploration of the Windows Workflow Foundation for both beginners and veterans together.? Nate Talbert?, Software design engineer, Microsoft Corporation Windows Workflow Foundation (WF) is an innovative approach to writing and implementing the program. Drawing on their unique perspective in designing and developing WF, Shukla and Schmidt provide authoritative coverage Core concepts and ideas that form the heart of WF programming model? S Model implementation of activities, with details of automatons, bookmarking, scheduling, and the threading model of the WF runtime Advanced execution concepts, including activity execution contexts, transactions, persistence points, passivation, fault handling, cancellation, compensation, and synchronization hosting WF runtime in applications activity component model, with details of validation, compilation, serialization, and visualization databinding, XAML, dependency properties, and the condition of WF program metadata declarative and rules, activity designers, and designer hosting Custom control flow patterns ranging from simple sequencing and iteration to chart a more complex and dynamic state machine running the sample program editing WF Essential Windows Workflow Foundation is the definitive resource for developers seeking a deep understanding of this novel technology. Both authors have been involved with the WF project since the beginning, and has been responsible for determining, designing, and developing most of the technology. Content About the Authors xiii Foreword xv Preface xvii Acknowledgments xxi A deconstruction WF 1 2 WF Programs 33 3 Activity Execution 53 4 Advanced Activity Execution 111 5 Applications 179 6 Transactions 241 7 Advanced Authoring 259 8 Miscellanea 325 Appendix robot 395 Activities Appendix B Control Flow Patterns 397 Index 435