Sams Teach Yourself Windows Workflow Foundation (WF) in 24 Hours

Sams Teach Yourself Windows Workflow Foundation (WF) in 24 Hours

By: Robert Eisenberg (author)Paperback

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Description

In just 24 sessions of about an hour, you'll learn how to build robust, efficient business workflows with Windows Workflow Foundation (WF). Using a straightforward, step-by-step approach, each lesson builds the real-world foundation you need to succeed with WF from the ground up. Filled with hands-on code examples, this book walks you through creating every type of workflow supported by .NET 3.5's powerful new version of WF. One step at a time, you'll discover how to host workflows, manage workflow lifecycles, integrate with Web services and WCF applications, create custom activities, and moreeverything you'll need to solve real-world problems with WF! Step-by-step instructions carefully walk you through the most common WF questions, issues, and tasks. Q&As help you build and test your knowledge. Notes point out shortcuts, solutions, and potential problems to avoid. New terms are clearly defined and explained. Learn how to... Understand the value of workflows and their role in general .NET and advanced business process management systems Run workflows from and exchange data with .NET applications Create sequential, state-machine, and data-driven workflows Define multi-level approval workflows that execute in parallel and escalate Develop rulesets and manage them from SQL databases Track your workflows to make them more agile and governable Use Dynamic Update to change running workflows Work with exceptions, compensation, and transactions Expose workflows as Windows Communication Foundation (WCF) services and call Web services from workflows via WCF Expose workflows as Web services and call Web services from workflows Create basic, queued, event-driven, and composite custom activities

About Author

Robert Eisenberg, principal, RE Associates, has more than twenty years of application development, consulting training, and management experience. Robert is currently an analyst and consultant specializing in WF, WCF, SharePoint, SOA, BizTalk, and Oslo. Robert's past experience includes the following: CEO and CTO, U.S. operations of the largest Internet professional services firm in Europe; acting director of enterprise systems at a publicly traded manufacturing company, where he architected and implemented all key business systems; founder and president of a software services company that installed and customized midmarket ERP solutions and created custom systems for Fortune 500 and midsize corporations. Clients included SBC, Ameritech, the Federal Reserve Bank, US West, and Cushman & Wakefield. Robert writes articles and frequently speaks about the topics he consults on at CodeCamp, Integration Journal, and Intelligent Enterprise Magazine.

Contents

Introduction 1 Book Target Audience 2 How This Book Is Organized 2 Hour Summary 3 Part I The Basics HOUR 1 Understanding Windows Workflow Foundation 9 Describing Workflow and Workflow Systems 9 A Conceptual Description of Workflow 9 A Sample Expense Report Workflow 10 Workflow Segmentations 12 What Is a Business Process Management System? 13 .NET Framework 3.0 and 3.5 13 Overview of WF 14 Standard Modeling Activities 16 Multiple Workflow Styles 19 Hosting 23 Tracking 24 Rule Capabilities 26 Conditional Rules 26 RuleSets 27 Custom Activities 29 Reason for Custom Activities 29 Types of Custom Activities 30 XAML Workflows and Serialization 33 Dynamic Update 34 WF and WCF 36 WF and WCF: Conceptual Overview 36 WF and WCF: Integration Specifics 37 SharePoint Workflow 38 SharePoint Workflow Overview 38 SharePoint Workflow Visual Studio 40 SharePoint Workflow SharePoint Designer 40 Designer Rehosting and External Modeling 41 Summary 43 Installation Instructions 44 Visual Studio 2005 and .NET Framework 3.0 Installation Directions 44 Visual Studio 2008 and .NET Framework 3.5 Installation Requirements/Directions 45 HOUR 2 A Spin Around Windows Workflow Foundation 47 Creating a Basic Workflow 47 Creating a Workflow Project 47 Building and Running a Workflow 49 Enhancing the Workflow 53 Improving Workflow Transparency 57 Passing Parameters to the Workflow 58 Using Declarative Rules 60 Adding New Activities 60 Creating the Declarative Rule 61 Examining the Project Files 63 Creating a XAML + Code Workflow 64 Adding and Configuring Activities 64 Examining the XAML Workflow 65 Running the XAML + Code Workflow 66 Creating a XAML-Only Workflow 66 Modeling and Preparing the XAML-Only Workflow for Execution 67 Call XAML-Only Workflow from Host 68 Summary 69 Workshop 69 Quiz 69 Answers 70 HOUR 3 Learning Basic Hosting 71 Overview of Hosting 72 Building a Host from Scratch 72 Creating Solution and Projects 73 Create a Simple Workflow 75 Creating the Host 75 Adding the Persistence Service 80 Adding Monitoring Events 83 Creating the Persistence and Tracking Databases 85 Running the Workflow 86 Updating the Host via Configuration 87 Summary 89 Workshop 90 Quiz 90 Answers 90 HOUR 4 Learning Host-Workflow Data Exchange 91 Host-Workflow Data Exchange 91 Creating the Solution and Projects 93 Creating the Solution 94 Creating the Local Service Project 94 Creating the Workflow Project 95 Creating the Windows Forms Project 95 Step 1: Creating the Local Service Interface 96 Step 2: Creating the Payload (EventArgs) Class 97 Step 3: Creating the Workflow 99 Adding the DependencyProperty Type 99 Step 3A: Creating a HandleExternalMethod Activity 101 Handle External Event Activity Property Window 102 Adding an IfElse Activity and Rules 103 Adding CallExternalMethod Activities 103 Creating the Windows Forms Host 108 Adding Controls to the Form 109 Adding the WF Runtime to the Form/Host 109 Step 4A: Creating the Workflow Instance and Raising the Initial Event 112 Step 4B: Implementing the Local Service 113 Building and Running the Project 116 Summary 116 Workshop 117 Quiz 117 Answers 118 HOUR 5 Creating an Escalation Workflow 119 Updating the Local Services 120 Updating the Basic Local Service Interface 120 Creating the Escalation Local Service 121 Extending the Workflow 122 Adding the Activities 122 Configuring CheckCredit's Activities 125 Updating the Workflow Code-Beside File 127 Update the Forms (Hosts) 128 Implement New Interface Members in the Escalation Form 128 Implement the MoreInfo Method in the Basic Order Form 129 Configure Hosts to Track and Persist 130 Add Tracking to Basic and Escalation Forms 130 Add Persistence to Both Forms 131 Retrieve Tracking Data 132 Retrieve the Workflow from Persistence 135 Running the Solution 137 First-Level Approval or Rejection 137 Second-Level Approval or Rejection 138 Second Level Approval and Tracking 139 Running the WorkflowMonitor SDK Sample 141 Downloading and Installing WorkflowMonitor 141 Summary 143 Workshop 144 Quiz 144 Answers 144 Part II State Machined Workflows and Advanced Control Flow Activities HOUR 6 Creating Basic State Machine Workflows 147 Explaining State Machine Workflows 147 Investigating State Machine Workflow Components 149 Creating the Project 150 Creating the Workflow 150 Preparatory Work 151 Adding State and EventDriven Activities 151 Updating the EventDriven Activities 153 Running the Basic Workflow 159 Hierarchical States and State Introspection 159 Modifying the Workflow 160 StateMachineWorkflowInstance and State Introspection 165 Run the Enhanced State Machine Workflow 165 Summary 166 Workshop 166 Quiz 166 Answers 167 HOUR 7 Creating Advanced State Machine Workflows 169 Updating the Form and Adding Member Variables 170 Updating the Form Code-Behind Logic to Work with StateMachineWorkflowInstance Members 170 Extract "In Scope" Events 171 SetState Combo Box 174 Historical States 175 Possible State Transitions 176 Override the Current State 176 Update the UI When Workflow Idles 177 Update the UI when Workflow Completes 177 Update the UI When Workflow Terminates 178 Running the Workflow 178 Summary 180 Workshop 180 Quiz 180 Answers 180 HOUR 8 Working with Parallel Activities and Correlation 181 Creating the Solution and First Project 181 Create the Parallel Activity Tester Project 182 Creating the Workflow 182 Standard Parallel Activity Execution 182 Running the Parallel Workflow 183 Synchronized Parallel Execution 185 Parallel Approval and Correlation 187 Opening the Solution and Adding the Projects 188 Local Service with Correlation 188 Create the Event Payload (EventArgs) 190 Concurrent Approver Workflow 191 Summary 200 Workshop 201 Quiz 201 Answers 201 HOUR 9 Working with the Replicator and While Activities 203 Creating Solutions and Projects 204 Creating the Replicator Workflow 204 Adding Member Variables to the Workflow 204 Placing the Activities on the Workflow 205 Configuring the Activities 206 Updating the Host Form 210 Running the Replicator Sequentially 212 Using the While Activity for Sequential Processing 213 Modeling the Workflow 213 Adding Code-Beside for the While Activity 213 Updating the Replicator Workflow to Run in Parallel 215 Adding Parallel Support to the Replicator 215 Running the Parallel Replicator 216 Summary 217 Workshop 217 Quiz 217 Answers 218 HOUR 10 Working with EventHandlingScope and Strongly Typed Activities 219 Learning Basic EventHandlingScope Activity Solution and Project Setup 220 Creating the Basic EventHandlingScope Workflow 220 Placing the Activities on the EventHandlingScope Sequential Section 220 Placing the Activities on the EventHandlingScope Event Handlers Section 221 Configuring the Event Handling Scope Sequential Activities 223 Configuring the EventHandlingScope Event Handling Activities 224 Running the Basic EventHandlingScope Workflow 225 Looking at the EventHandlingScope Activity in XAML 225 Creating a More Advanced EventHandlingScope Workflow 226 Setting up the Advanced EventHandlingScope Activity Solution 226 Add the Activities to the Workflow 227 Running the Advanced EventHandlingScope Workflow 232 Using WCA.exe to Build the Strongly Typed Activities 233 Use Strongly Typed Activities on a Workflow 234 Summary 237 Workshop 238 Quiz 238 Answers 238 Part III Data-Driven Workflows and Rules HOUR 11 Creating Data-Driven Workflows 241 Describing the CAG 241 Exploring the CAG and Data-Driven Workflows 243 CAG Approval Sample 243 Creating the Project 244 Adding Variable Declarations 244 Add the CAG to the Workflow 245 Configuring the Approver1Lane of the CAG 246 Configuring the Approver2Lane of the CAG 249 Running the Workflow with Two Lanes 251 Configuring the Approver3Lane of the CAG 252 Run the Workflow with Three Lanes 254 Summary 254 Workshop 255 Quiz 255 Answers 255 HOUR 12 Working with the WF RuleSet 257 Creating the RuleSet 258 RuleSet Terminology and Project Ruleset 258 Creating the Project 260 Creating the RuleSet via the Policy Activity 260 Monitoring the RuleSet 264 Adding RuleSet Tracing 265 Evaluating Pre-Execution Results 265 Evaluating Post-Execution Results 267 Calling Methods from Rules 267 Attributing Methods to Detect Dependency 269 Using the External RuleSet Application 271 Downloading the External RuleSet Application 271 Running the Sample Workflow 272 Uploading Rules to the External Database 273 Adding the Custom Policy Activity to the Toolbox 275 Preparing the Workflow to Use External Rules 275 Configuring the Workflow to Use External Rules 276 Running the Workflow with External Rules 277 Summary 278 Workshop 278 Quiz 278 Answers 279 Part IV Intermediate and Advanced Features HOUR 13 Learning to Track Workflows 283 Tracking Architecture 284 Tracking and Business Activity Monitoring 285 TrackingProfileDesigner SDK Sample 286 Reviewing the TrackingSolution 286 Opening the TrackingProfileDesigner and Loading a Workflow 288 Tracking Workflow Level Events 289 Tracking Activity Level Executed and Completed Events 290 Uploading and Examining the Profile and Running the Workflow 292 Additional Tracking Functionality 294 Manually Updating Tracking Profile and UserTrackingRecords 298 Adding User Tracking Data 299 Retrieving and Saving the TrackingProfile to a File 299 Manually Modifying and Uploading a Tracking Profile 300 Workshop 304 Quiz 304 Answers 305 HOUR 14 Working with Roles 307 Explaining Roles 307 Describing the Role Solution 308 Setting up an ASP.NET Role Provider 308 Updating the Host 311 Updating the Workflow 312 Adding Level2Role Support 315 Adding Level2Role Support to the Workflow 315 Adding Level2Role Support to the Code-Beside 315 Running the Solution with Level 2 Support 316 Summary 317 Workshop 317 Quiz 317 Answers 317 HOUR 15 Working with Dynamic Update 319 Applying Dynamic Update: Outside and Inside 320 Applying Dynamic Update from the Inside 321 Applying Dynamic Update from the Outside Unplanned 324 Explaining Dynamic Update from the Outside Planned 326 Updating Rules Dynamically 327 Selecting Which Version to Run 329 Changing Declarative Rule Conditions with Dynamic Update 329 Changing a RuleSet Rule via the CodeDom 332 Dynamic Update: Exploring Workflow Changes Sample 337 Summary 340 Workshop 341 Quiz 341 Answers 341 HOUR 16 Working with Exceptions, Compensation, and Transactions 343 Creating the Project 344 Basic Exception Handling 344 Modeling the ExceptionWorkflow 345 Adding a Workflow-Level FaultHandlers Activity 345 Handling the Exception 348 Configuring Visual Studio Debugger to Not Trap CLR Exceptions 349 Hierarchical Exception Handling and the Throw Activity 350 Updating the Exception Workflow 350 Catching Exceptions in the IfElse Activity 351 Handling Exceptions in the IfElse Activity 352 Use the Throw Activity 353 Reconfiguring the Throw Activity 353 Activity Handlers Elements and Views 354 Cancellation Handlers 355 Performing Preliminary Setup 355 Modeling the CancellationWorkflow 356 Adding the Cancellation Handler 356 Compensation Overview 357 Performing Preliminary Setup 358 Registering the SQL Persistence Service 358 Modeling the CompensationWorkflow 359 Adding the Compensation Handler 359 Adding a FaultHandlers Activity to the Workflow and Rerunning the Workflow 361 Adding a Compensate Activity to the Fault Handler 361 Moving the Throw Activity into the CompensatableSequence Activity 362 Transactions 363 Performing Preliminary Setup 363 Model and Configure the TransactionWorkflow 364 Running the SQL Script to Create the TestTransaction Database 365 Running the Workflow 365 Summary 366 Workshop 367 Quiz 367 Answers 368 HOUR 17 Learning Advanced Hosting 369 Exploring WorkflowRuntime Events 370 Workflow Events Sample Application 371 Running the AdvancedHostingForms Project 372 Runtime Services 375 Loading Service 377 Workflow Queuing Service 378 Building the Scheduling Service Project 379 Modeling and Configuring the Workflow 379 Updating the Host to Run Three Workflows 380 Running the Workflow with the DefaultWorkflowScheduler Service 381 Updating the Host to Use the ManualWorkflowSchedulerService 381 Running the Workflow with the ManualWorkflowSchedulerService 382 Modifying the Workflow to Use Delay Activities 383 InvokeWorkflow Activity 384 InvokeWorkflow Project: Host Prematurely Exits 385 InvokeWorkflow Project: Host Waits 387 InvokeWorkflow Project: Synchronous Calls and Parameters 387 Summary 394 Workshop 394 Quiz 394 Answers 395 HOUR 18 Working with Web Services and ASP.NET Hosting 397 Creating the Solution and Projects 398 Creating a Workflow and Publishing It as a Web Service 398 Creating Dependency Properties 398 Modeling and Publishing the Workflow 399 Creating the Interface to Produce the WSDL 399 Configure the WebServiceInput Activity 400 Configuring the IfElse Activity 401 Configuring the WebServiceOutput Activity 402 Publishing the Workflow as a Web Service 403 Calling a Web Service from a Workflow 404 Creating Dependency Properties 404 Modeling the Workflow 404 Finishing Configuring the InvokeWebService Activity 405 Running the Basic Workflow Solution 406 Additional Workflow Topics 407 Working with SOAP Faults 407 Exploring Generated Project and Cookie Usage 410 Exploring the WebServiceInvokeActivity.WebServiceProxy Property 412 Learning ASP.NET Hosting 413 Opening the Existing Solution and Creating the ASP.NET Project 413 Instantiating the WorkflowRuntime 414 Creating the ASP.NET Web Form 415 Starting the Workflow Instance 416 Running the ASP.Net Hosted Workflow 418 Summary 418 Workshop 418 Quiz 418 Answers 419 HOUR 19 Learning WF-WCF Integration 421 Overview of Windows Communication Foundation 421 WF and WCF Overview 422 Hosting a Workflow in WCF Using Existing Interface and Receive Activity 424 Creating the Solution and Projects 425 ABCs of WCF and WF Specific Bindings 426 Exploring the ContractsAndWorkflows Project and Bindings 427 Creating the WCF Endpoint and Host 431 Creating the Console Application Client 434 Hosting a Workflow in WCF: Configuring Receive Activity and Updating Interface 437 Modifying the Interface 438 Configuring the Receive Activity 438 Rebuilding the Client 441 Accessing WorkflowRuntime from WorkflowServiceHost 442 Performing Preparatory Work 443 Retrieving the WorkflowRuntime 443 Running the Project 444 Connecting to a WCF Endpoint from WF 445 Updating the Workflow 445 Summary 448 Workshop 449 Quiz 449 Answers 449 Part V Custom Activities HOUR 20 Creating Basic Custom Activities 453 Custom Activity Conceptual Overview 453 Improve on Out-of-the-Box Activities 454 Create Domain-Specific Activities 454 Custom Control Flow Patterns 454 Custom Activity Technical Overview 455 Basic Custom Activity Overview 456 Creating the Solution and Projects 456 Creating the Solution and Projects 457 Creating the Customer Custom Activity 457 Setting the Base Activity 457 Overriding the Execute Method 458 Adding the Custom Activity to a Workflow 459 Updating the Customer Activity to Receive Input 460 Updating the Customer Activity to Retrieve Information from a Database 462 Adding Existing Custom CreditCheck Activity 465 Adding Event Handlers to Activities 469 Creating Compound Activities 470 Creating and Modeling the Compound Activity 470 Configure the IfElse Activit 471 Configuring the CheckCredit Activity in the CompoundCreditCheck Activity 472 Configuring the Customer Activity in the CompoundCreditCheck Activity 472 Creating a New Sequential Workflow 473 Modeling the Workflow with the CompoundCreditCheck Activity 473 Activity Programming Model 475 Designer Components 475 Creating an Activity Designer Theme 476 ToolboxBitMap Class 478 Adding Graphic as Image and Associating Class 479 Adding the Activity to the Toolbox Across Projects 480 Creating the VSContent File 480 Creating the VSI file 480 Workshop 482 Quiz 482 Answers 482 HOUR 21 Creating Queued Activities 483 Exploring Activity Life Cycle Topics 484 WorkflowQueue 484 ActivityExecutionContext 485 Overview of Samples 486 Creating the Solution and Projects 486 Creating a Basic Custom Queued Activity 487 Performing Preliminary Custom Activity Setup 487 Override the Initialize Method 487 Override the Execute Method 489 Adding Code to the QueueItemAvailable Handler 490 Override the Uninitialize Method 492 Updating Host to Send Data to the Queue 492 Running the Workflow 493 Custom Activity Queued from Service 493 Creating the CustomerQueuedFromService Service 494 Creating the CustomerQueuedFromServiceActivity Custom Activity 498 Updating the Host to Use the New Service 503 Summary 504 Workshop 505 Quiz 505 Answers 505 HOUR 22 Creating Typed Queued and EventDriven-Enabled Activities 507 Creating a Custom Activity that Accesses a Typed Service 507 Preliminary Project Setup 508 Adding the CustomerEventArgs File 508 Modifying the CustomerQueuedFromTypedServiceActivity Custom Activity 09 Modifying the CustomerQueuedFromTypedService Service 510 Updating the Host to Use the Typed Service 513 Creating an EventDriven Activity 513 Creating the CustomerEventDrivenActivity Custom Activity 514 Workshop 522 Quiz 522 Answers 523 HOUR 23 Creating Control Flow Activities Session 1 525 Control Flow Activity Conceptual Overview 525 Creating the Solution and Projects 527 Creating the Control Flow Activity 527 Creating Nonexecuting Control Flow Activity 527 Adding Single Child Activity Execution 529 Executing All Child Activities 532 Designer Hierarchy Overview 535 Adding Parallel Execution Option 536 Adding Cancellation and Early Completion 542 Creating GeneralControlFlowBranch and Adding a Condition 545 Summary 549 Workshop 549 Quiz 549 Answers 549 HOUR 24 Creating Control Flow Activities Session 2 551 Enhancing the GeneralControlFlow Activity 551 Adding a Custom Designer 552 Adding ToolBoxItem 554 Adding Custom Validation 556 Adding Attached Properties and the ActivityCondition Type 561 Reviewing Activity Life Cycle Artifacts 568 Implementing Compensation 570 Summary 572 Workshop 572 Quiz 572 Answers 572 Index 575

Product Details

  • ISBN13: 9780321486998
  • Format: Paperback
  • Number Of Pages: 624
  • ID: 9780321486998
  • weight: 940
  • ISBN10: 0321486994

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