Book Image

Microsoft Windows Workflow Foundation 4.0 Cookbook

By : Andrew Zhu
Book Image

Microsoft Windows Workflow Foundation 4.0 Cookbook

By: Andrew Zhu

Overview of this book

Windows Workflow Foundation 4.0 (WF) is a significant part of .NET Framework 4.0. WF makes workflow technology available to every single programmer that uses the .NET Framework 4.0. It is easy to create long running and distributed programs using WF with the right knowledge. With this book, you will discover that working with workflows is easy. This book provides both step-by-step recipes and relevant background information. It covers all the important aspects of Windows Workflow Foundation 4.0. The best thing about this book is that all recipes are based on real-world experiences of Andrew Zhu. Andrew is a global WF and BizTalk technology support engineer for Microsoft. This book covers everything you need to know, when working with workflows. Get to grips with flow control activities, messaging, and transaction processes with easy to understand steps followed by explanations. You will quickly learn to use collection and custom WF activities and WF services.You will see recipes that illustrate integration of Windows Workflow with other applications such as WPF, ASP.NET, WCF service.Lastly, you will discover how easily you can customize W4 Designer with WF rule engine and others.
Table of Contents (15 chapters)
Microsoft Windows Workflow Foundation 4.0 Cookbook
About the Author
About the Reviewers

Implementing XAML Workflow Tab and Run events

In this task, our workflow designer will have the ability to run workflow so that we can test our workflow when we are editing.

Getting ready

Before we begin this task, we must have completed the previous task: Implementing Save and Save As events.

How to do it...

  1. Open the workflow designer project:

    Open the workflow designer project we created in the previous task.

  2. Add code to the designer:

    Open the designer's backend CS code file, MainWindow.xaml.cs, and create a new method GetActivity. Then add code to the TabItem_GotFocus_RefreshXamlBox method and the MenuItem_Click_RunWorkflow method:

    Activity GetActivity() { 
    System.IO.StringReaderstringReader = new System. IO.StringReader(wd.Text); 
    Activity root = System.Activities.XamlIntegration. ActivityXamlServices.Load(stringReader) as Activity; 
    return root; 
    private void MenuItem_Click_RunWorkflow(object sender, RoutedEventArgs e) { 
    Activity activity = GetActivity();