Free .NET and Workflow chapter “The Workflow Programming Language”
With SharePoint 2013, there is added emphasis on understanding Windows Workflow Foundation (WF) 4.0. And for you Wrox reader, we’re sharing a great FREE WF 4.0 chapter written by Regional Director Vishwas Lele from our book Real World .NET, C#, and Silverlight: Indispensible Experiences from 15 MVPs.
Windows Workflow Foundation 4.0 (WF 4) is a programming language based on higher-level abstractions suitable for implementing business processes. Even though the WF 4 programs are likely to be authored using graphical tools (such as the Workflow Designer), developers must understand the fundamentals of the Extensible Application Markup Language (XAML) based declarative syntax to make the most of the features offered by WF 4.
This chapter starts with the notion of Activity as a basic construct of a WF 4 program. In this chapter, you learn about language fundamentals, including arguments and variables, scoping rules, expression support, and flow control constructs. In addition, you learn ways to extend the WF 4 framework by building domain-specific custom activities. Finally, this chapter examines hosting WF 4 programs in Windows AppFabric.
This chapter is designed for .NET developers who want to incorporate WF 4 into their solutions to ease the authoring of business processes. This chapter assumes that you have a good understanding of C# and .NET.
Vishwas Lele is an AIS (www.appliedis.com) Chief Technology Officer, and is responsible for the company vision and execution of creating business solutions using .NET technologies. Lele has more than 20 years of experience and is responsible for providing thought leadership in his position. He has been at AIS for 17 years. A noted industry speaker and author, Lele is the Microsoft Regional Director for the Washington, D.C., area.
About the Author