The document discusses Windows Workflow Foundation (WF), a framework that enables users to create system or human workflows in applications. WF allows for workflows within line-of-business apps, user interface page flows, document workflows, and more. A WF project can be created to define workflows as classes using C# or XML. The document provides a link to an MSDN tutorial about a simple expense report workflow that routes approvals based on amount and uses controls like If, Assign, and Sequence.

1. Mohammad Shaker
mohammadshaker.com
@ZGTRShaker
2011, 2012, 2013, 2014
C# Advanced
L11-Windows Workflow Foundation (WF)

2. Windows Workflow Foundation (WF)

3. Windows Workflow FoundationWindows Workflow Foundation is a framework that enables users to create system or human workflows in their applications

4. Scenarios
•Enabling workflow within line-of-business applications.
•User-interface page flows.
•Document-centric workflows.
•Human workflows.
•Composite workflows for service-oriented applications.
•Business rule-driven workflows.
•Workflows for systems management.

5. Workflow Runtime Engine
Source: http://msdn.microsoft.com/en-us/library/vstudio/aa349006(v=vs.90).aspx

6. Creating WF Project

7. Creating WF Project

8. Workflow Console Application

11. A Workflow
•A workflow is a class
•A workflow class may be defined in markup
11
using System.Workflow.Activities;
public class MyWorkflow: SequentialWorkflow
{
}
<?Mapping XmlNamespace="Activities" ClrNamespace="System.Workflow.Activities" Assembly="System.Workflow.Activities" ?>
<SequentialWorkflowx:Class="MyWorkflow" xmlns="Activities" xmlns:x="Definition">
…
</SequentialWorkflow>

12. Take a Look at MSDN TutorialThe application is a simple expense report that consists of a text field to enter an amount and a button to submit the expense report. The workflow uses rules to evaluate the amount and to require approval from a lead if the amount is less than 1000, or approval froma manager if the amount is greater than or equal to 1000. If approval is needed, the workflow communicates back to the application and displays a drop- down panel that containsApproveandRejectbuttons. When one of these buttons is clicked, the application notifies the workflow of the response, and the workflow continues to process the event. http://msdn.microsoft.com/en-us/library/vstudio/ms734794(v=vs.90).aspx

13. Quick Crazy Workflow

14. Workflow Tutorial

15. Workflow Tutorial
Sequence, Assign and IfControl flow

16. Workflow Tutorial

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