By Mark Collins
Windows Workflow origin is a ground-breaking addition to the center of the .NET Framework to be able to orchestrate human and procedure interactions as a chain of workflows that may be simply mapped, analyzed, adjusted, and applied. As company difficulties develop into extra complicated, the necessity for a workflow-based resolution hasn't ever been extra obtrusive. WF presents an easy and constant strategy to version and enforce advanced difficulties. As a developer, you concentrate on constructing the company good judgment for person workflow projects. The runtime handles the execution of these initiatives when they were composed right into a workflow. starting WF demonstrates, in an eminently readable and available kind, how Microsoft's Workflow origin (WF) expertise can be utilized in a wide selection of purposes. * Loaded with plenty of easy but demonstrative pattern tasks * Very hands-on with useful "how-to" details * listed through function so particular questions are simply responded What you will examine starting WF will take you step-by-step via some of the invaluable functions of workflow expertise. alongside the best way, you'll: * Create designer-based and code-based workflows * speak among functions utilizing workflow actions * enforce SQL patience with customized contributors * Create workflow extensions and customized actions * construct functions that aid long-running workflows * Host workflows in WCF companies Who this publication is for This booklet is ideally fitted to a person utilizing or contemplating Microsoft's home windows Workflow beginning. It describes what WF can do for you and the way to speedy research the fundamental recommendations had to be trained. if you are actively imposing a workflow venture, this ebook has plenty of pattern initiatives that show the main priceless layout styles. desk of ContentsChapter 1: construction an easy Workflow bankruptcy 2: Coded Workflows bankruptcy three: Flowchart Workflow bankruptcy four: Passing Arguments bankruptcy five: Replicated actions bankruptcy 6: Exception dealing with bankruptcy 7: Extending the integrated actions bankruptcy eight: ship and obtain bankruptcy nine: speaking with the Host software bankruptcy 10: net companies bankruptcy eleven: SQL patience bankruptcy 12: customized Extensions bankruptcy thirteen: monitoring bankruptcy 14: Transactions bankruptcy 15: Transactions with endurance bankruptcy sixteen: WorkflowServiceHost bankruptcy 17: repayment, affirmation, and Cancellation bankruptcy 18: Collections bankruptcy 19: Interoperability with Workflow 3.5 bankruptcy 20: coverage
Über den Autor
Mark Collins has built software program for over 25 years, as a rule utilizing the Microsoft stack. He has served many jobs together with improvement supervisor, architect, group lead, database administrator, and undertaking supervisor. He has huge adventure in retail (point-of-sale and stock) and shopper dating administration (CRM) recommendations. Mark presently serves as a senior software program engineer for a nonprofit association, delivering a customized CRM, mail processing, and achievement approach.
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Extra resources for Beginning WF: Windows Workflow in .NET 4.0
Connect the Afternoon branch of the first FlowDecision to the new activity. Set the FalseLabel to Afternoon and the TrueLabel to Evening. Drag two WriteLine activities onto the workflow and name them Afternoon and Evening, and set the Text as “Good Afternoon” and “Good Evening”, respectively. Connect the Evening branch of the second FlowDecision to “Evening” and the Afternoon branch to “Afternoon”. Your flowchart should look like the one shown in Figure 3-8. Figure 3-8. cs file. This code is identical to the file generated in Chapter 1.
This is followed by a While activity named “Sound Bells”, a WriteLine activity named “Display Time”, and an If activity named “Greeting”. One key point that I want you to see is that there is no executable code here. This file is just a nested collection of properties. For example, to increment the counter, you would normally expect to see a line of code like this: counter = counter + 1; Instead you have an Assign class with a counter expression and a counter + 1 expression. The actual execution that makes the assignment of counter = counter + 1 is performed by the Assign activity.
However, implementing a workflow in code will help you gain a better sense of how workflow works. Creating a Console Application To start, create a simple console application (do not use a workflow template), as shown in Figure 2-1. Figure 2-1. Activities. This will enable you to use the workflow activities in your application. ReadLine(); Note that this is identical to the main() implementation from Chapter 1. If you want, you can simply copy and paste from your previous application. There is one difference, however.