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Course Overview Windows Workflow Foundation (WF), part of .NET 3.0, offers a programming toolkit and runtime engine to assemble workflow-enabled applications that model business processes. In this course, you gain experience developing desktop and Web applications with WF. You learn how to configure hosting and communication options, create custom activities and services for WF, and track in-flight workflows. Audience This course is valuable for programmers, system analysts and anyone developing .NET applications using WF. Programming experience at the level of Course 503, " Visual Basic 2005 Programming ", or Course 419, " C# Programming ", is assumed. Skills Gained - Build dynamic and flexible applications using Windows Workflow Foundation (WF)
- Assemble workflows with sophisticated logic using the Workflow Designer
- Host workflows in Windows and Web applications
- Apply local host communication services to workflow applications
- Implement sequential and state machine workflows using WF
- Employ the persistence and tracking services in WF
Course Outline Introduction - Workflow application architecture
- .NET 3.0 and workflow
Workflow Fundamentals Components of workflow applications - WF programming model
- Workflow Runtime
- WF hosting
- Base activity library
- Sequential vs. state machine workflows
- XAML vs. code workflows
Integrating with Visual Studio - Exploiting WF design-time features
- Composing workflows with the Workflow Designer
- Implementing WF application code
- Debugging workflows
Coding custom activities - Modelling discrete business processes
- Harnessing the activity execution model
- Developing dependency properties
- Linking activities through activity binding
Hosting the WF Runtime Windows Forms - Creating the WF runtime in the host application
- Handling workflow runtime events
- Marshalling workflow events onto the UI thread
ASP.NET - Exposing the WF runtime globally
- Supporting multiple activity users
- Taking control of scheduling to maximise efficiency
Implementing Workflow Logic Applying conditional logic to a workflow - Making decisions with IfElse
- Looping with While
- Crafting code and declarative rule conditions
- Executing parallel tasks
- Invoking Web services from a workflow
Handling errors and cancellation - Detecting faults in workflows
- Suspending workflows in transient failure
- Restoring workflow state with cancellation
Communicating Between Workflow and Host Designing for the local communication service - Mapping workflow data exchange into an interface
- Modelling host to workflow events
- Designing workflow to host methods
- Creating a service implementation
Event-driven workflows - Listening for host messages
- Handling external events
- Calling external methods
Managing the workflow data life cycle - Providing data to a workflow on startup
- Extracting data from a completed workflow
Activating the application - Creating the external data exchange service
- Raising events into the workflow
- Responding to workflow notifications
Designing State Machine Workflows Modelling non-linear business processes - Supporting process backtracking
- Navigating between states
- Determining allowable transitions
Employing state machine activities - Initialising and finalising state data
- Moving to new states with SetState
- Tracking state history
Persisting and Tracking Workflows - Engaging SQL Server persistence
- Passivating and reconstituting workflows
Modelling in-flight workflows with tracking - Establishing workflow tracking services
- Coding with the tracking API
Applying Security to WF - Controlling workflow access
- Integrating with Web and Active Directory roles
- Windows is a registered trademark of Microsoft Corporation.
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