1. Summary
We have been familiar with the basic concepts of WF before, and I believe you are eager to try it. I want to enter the real WF development.
From the beginning of this article, we will first familiarize ourselves with the activities in WF.
2. Activities
The core of WF is a series of activities.
Related Articles:Tracing Service in WF (1): SQL tracking database tables, views, stored procedures, and other related descriptionsTrack service in WF (2): Use sqltrackingserviceTrack service in WF (3): Use sqltrackingservice to track rulesTracking Service in WF (4): Use the tracking configuration fileTracking Service i
Many of my friends asked me how to learn WF. I would like to give some suggestions here.
1. Basic Knowledge: This is necessaryC #/vB syntax, generics, reflection, delegation, thread, oo ideas
2. You cannot use databases, so ADO. NET must master
3. At least master ModelingFlowchart, sequence diagram, collaboration diagram, and State Diagram
4. data structure. The design mode should at least be understood.Linked List, binary tree, responsibility cha
After completing this chapter, you will learn:
1. Understand the workflow Association (correlation) and where it must be used, and why it is important
2. Use Workflow association parameters (correlation parameters)
3. Generate and use related local communication services
The applications you've seen throughout this book are generally based on a single same architecture, with WF support performing tasks in the workflow instance. These are one-to-on
scheduling logic, domain model language has been very popular these years. The description of the procedure can be implemented in any one way.
The problem of 1.2c# control process
Take a look at the interactive process: the process of requiring the response of external messages in the process of flow. Maybe some processing will wait a few days or even weeks. If you use the C # control flow implementation, how should be implemented. The general practice is to create a new line Cheng execution
[Stick to the top] Stick to learning WF Article Indexes
The cancellationhandleractivity activity contains the cleaning logic for the canceled compound activity before all the child activities of the composite activity are completed. In WF, listenactivity, conditionedactivitygroup, and parallelactivity are common activities that can be executed simultaneously. Before all sub-activities are executed, a spec
In this demo we will add the If/else logic to the workflow to show the different message by customizing the condition.If the number of characters in name is odd, the first word outputs "greeting" otherwise outputs "Hello".1. Add a method to the Sayhelloincode class,2. Create a unit test in SayHelloFixture.cs to verify correctness,Running the unit test results in an error and the result is "Hello", since we have not defined the information that the workflow returns under different conditions.3. C
Series Directory: WF Series 3 Out-of-the-Box Activities topic directory
Code Activity is one of the most frequently used activities in WF development. It is easy to do. It is to execute one or several codes and trigger a Handlers when this behavior is being executed: executeCode.1. Simple Code Activity Application* Check this Code.Public sealed partial class Workflow1: SequentialWorkflowActivity
{
Public Di
As there were a lot of workflows used in previous projects, I was interested in learning the WF knowledge of Ms.WF definition:A workflow is defined in an activity diagram. It may be a human operation or a system process. An activity is a step in a workflow. It is embodied as an executable unit that can be reused and integrated. After the workflow is designed, it is compiled into a. Net assembly and executed by the workflow runtime and the general lang
There are two methods for workflow in WF: code mode and code mode. the xoml mode, the two can be converted to each other, which is the serialization provided in WF.And deserialization support. The following important classes in the WF framework:
The workflowmarkupserializer class is the serialization base type used in the serialization infrastructure. This type provides some basic services for serializati
I introduced the first part of wf4's new event-driven workflow design. We can summarize several key points.
1. The event mechanism of wf4 is revolutionary and different from that of WF3. WF3 is based on the externaldataexchange service. Wf4 is based on WCF. This design is much easier for developers.
2. In WF3, the so-called eventdriven activity is used, while in wf4, the activity like receive is used. In fact, this clue can be seen from the WF 3.5.
3.
References: http://www.cnblogs.com/carysun/archive/2009/12/06/wf4-activitycorrelation.html
The above links have more comprehensive information, which is just a key point. I have spent a few hours experimenting with this experiment. I hope you can avoid detours.
1. Use send to send messages. (Note that you cannot call methods with returned values)
2. Send and receivereply for sending and receiving responses. (Must be used in conjunction with activities)
3. Send key attributes and parameters
AEC Introduction
Activityexecutioncontext is an important part of a workflow.
Well, the introduction of AEC comes first and ends with a seriesArticleI will explain in detail the core principles of AEC and WF.
Copy of activity
While and replicator can execute its subactivities repeatedly.
The while and replicator do not reset the activity to the initial state each time they reuse the activity. Instead, the original activity is cloned, and each
Label: style HTTP color Io OS ar Java1 workflow button label (WF: workflowbuttongroup)
1.1 Introduction:
1.2 introduction to task status:
Depending on the task status, the buttons are displayed differently. The task status is: 0: Waiting for processing 1: Waiting for setting 2: task completion 3: canceled 4: Waiting for receiving 5: assigned 6: to be selected.1.3 parameter description:
Taskid: ID of the current task1.4 Event Description:
Save butto
Overview:
This demo is intended primarily to illustrate how WCF services are used in WF4, and how to invoke WCF services in Silverlight. Because the Silverlight rendering UI is used, and LINQ is used to access the database. So the name of this article is: "An example of silverlight+wcf+wf+linq combination." If you have a little knowledge of WCF like me, you know that WCF can put a lot of methods in a URI for everyone to call. So how do you put multip
WF rule designer
The WF engine provides three methods to start a workflow:
Specifies the class for referencing workFlow. This requires referencing the workFlow DLL or placing workFlow and engine in the same project.
Specify the xoml file cited for workFlow (dynamic compilation)
The xoml string of the specified workFlow.
I have written examples of these three methods. I have also said their advantages
Insist on learning WF Article Index
Because the rule is notProgramOfCodeYou cannot use the vs Debugger for debugging. If you want to debug a workflow program with rules, you can enable the tracing function of the rule engine. The following is an example. We need to create an ordered workflow project, put a policyactivity in the workflow designer, and set its rulesetreference attribute. We will create the following rule set. See the following table:
1. workflow development style
In WF, there are three ways to develop workflows.
Here, I don't want to take the time to give an example.
The workflow layout is in The XAML format. I believe that those who know about WPF and sivlerlight know this clearly. In fact, this is the same as WF. This is the so-called markup-only mode.
The other extreme is code-only. We still want to think abou
Previously, I saw in Asp.net 3.5 building a web portal site using WF to build an architecture business process. I felt very cool and didn't care too much about it. During this time, I have been planning to use WF to build a workflow solution, suddenly I thought: If workflow is used as a part of Sharepoint to replace events, is it a good solution, but I found that there are too many problems to solve.
The s
. activitybind (); activitybind3.name = " workflow " ; /// Object Name activitybind3.path = " right " ; // Object member This . sumactivity1.setbinding (activitylibrary. sumactivity. rightproperty, (system. workflow. componentmodel. activitybind) (activitybind3); /// bind
Generally, you do not need to explicitly define the binding. The process designer will generate the relevant code.
3. bind it to the configuration file
WF supp
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.