Windows Workflow Foundation (wwf) Study Notes (1)
1,InstallWindows Workflow Foundation.
The latest version released by Microsoft is:Visual Studio 2005 Extensions for Windows Workflow Foundation Beta 1.2.exe.
Microsoft's WebCast instructor said that WWF should be installed and VS2005 should be installed before Workflow Foundation can be used normally. if the process is the opposite, VS 2005 will not be able
and run. The results are exciting!
Another unsolved problem is to determine whether the activity is selected. Designer There is an attribute Isselected , In Designer In Onpaint .
To sum up, if you only want to change the style at runtime, you cannot directly change the style attribute provided by the style, we can get the pen, brush, and other lower-level objects related to the drawing provided by the style, and then set them accordingly. For fonts Theme Moderate Font . I
The main purpose of this article isRehost WWF designerLater, I want users to see a more dedicated designer than the default one provided by Microsoft.ENote (at least the current version is like this ). Due to busy work, the design described in this article is not comprehensive, but only the title and text. I hope you will forgive me. However, for general applications, I think these can meet most of the requirements.
Let's take a look at the basics
Asp.net| Program
Brief IntroductionBy using WWF, you can create workflows based on processor flow and deploy them in any type of. NET application. In addition, this article discusses some of the specific issues that asp.net developers face-problems that can be addressed by using workflows such as Maintenance status and page navigation.
In September 2005, Microsoft exposed the Windows Workflow Foundation (wwf
From WWF to the decision of the so-called "independent development", after some discussion, after nearly one and a half months of tossing, And now back to the WWF, re-find the WWF thing to study again. I don't want to say who is responsible, but this process can be avoided.Aside from WWF, users who want to define nodes
.
Workflowdesignermessagefilter: If you wantDisableUser pairWorkflowThis class can be used for some Interaction Events of the designer or for some special things; and this class isWorkflowdesignerloaderIt can be used together, otherwise it will not work. In other words, we usually don't care about this class. This class is optional rather than necessary.
if you want to make a designer like vs integrated environment, you still have a lot to do. Such as toolbox and attribute window. There
WWFIntroduction
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Windows Workflow Foundation (WWF) is a programming model, engine, and tool used to quickly generate an application to start a workflow on Windows. it includes a namespace, an in-process workflow engine, and multiple Visual Studio 2005 designers. Windows Workflow Foundation is a framework that allows you to create system or manual workflows in applications written for Windows Vista, Windows XP, and Windows Server 2003.
Windows
One week before I got started with WWF, I really started to learn about. net. If. NET is not mastered yet, I have to start learning about workflow. Now I feel that it is very hard.I am not familiar with. net. Please refer to the relevant documents and Code It is very difficult. It can only be a big and changing generation. It cannot be understood but only supports memory. This memory effect is also quite poor. the more difficult it is to see the back,
Original:. Net three workflow engine comparison: WWF, netbpm and CcflowBelow will be the current mainstream of the three workflow to introduce and compare, and then through the three process engine design a more typical process to show you the three process of creating the process. These three workflow engines are Windows Workflow foundation,netbpm, respectively, Ccflow.NETBPM and Ccflow are two domestic well-known open source software, especially ccf
useless at all. If it is not used, how can a staff member tell the workflow processing result (the application and workflow instance work in two independent threads ). One way is to useManualworkflowschedulerserviceIn this way, the workflow engine and application can run in the same thread. Maybe there is a better way, please don't forget to tell me.
There is still one thing to do. We need to create one for each custom activity.PersistoncloseattributeAttribute. Important,We need a chance to st
I. faulthandler
The following figure shows how to add a workflow:
First, add a seruence, add three codes in it, add a code outside, enable seruence error handling, add a faulthandler in the container, and add a code activity in faulthandler.
Set the faultType attribute of faulthandler as follows:
Be sure to bind the property.
Running effect:
Note that if faulthandler captures errors, other code activities in seruence will not be executed, but the code outside seruence will c
WWF classifies workflows into two categories:
Human-oriented: When a workflow is running, the user's operations on external applications affect the workflow's business flow.
For system: application control process.
Workflows and applications can exist independently. Therefore, data interaction between them must be implemented through interfaces. Data Interaction Models between workflows, applications, and interfaces are as follows:
The workflow
What is a workflow? It is not quite clear yet.
What problems does a workflow solve? For the moment, it is just a vague concept that cannot be described in languages.I. Example
Take vs2008 as an example to create a WWF program.
Drag a code in the toolbox to "activity ".
Open the attribute panel of codeactivity1, double-click in executecode, and enter, type the following code:
Namespace workflowconsoleapplication1 {public sealed partial class work
regardless of whether it is passed or canceled.At the end of the process, the system should email the result information of the leave to the applicant.For applications greater than 10 days, if the department supervisor has approved the approval and the supervisor has not approved, then the applicant revocation of the application, the system should send an email Notification Department Supervisor application has been revoked.Here we are just a simulation, of course, real life situation is more c
2 instance tutorials for actual application workflow (WWF) in asp.netLook at the workflow of a console version of the example, want to asp.net in the actual application of the WWF, but suffer from insufficient capacity, here to find 2 pieces of a good article, sharing:The Case-study article on CodeProject.com, written at the end of 08:Navigational workflows unleashed in
I. Ordered Workflow
Ordered activities are the most basic and simple container-type activities in WWF workflows. Ordered activities can be used as branches of many other activities.
Code:
Private void codeexecute1 (Object sender, eventargs e) {console. writeline ("sequence workflow Step 1! ");} Private void codeexecute2 (Object sender, eventargs e) {console. writeline (" sequence workflow Step 2! ");} Private void codeexecute3 (Object sender, event
Company Name: Enterprise Service Department of Microsoft China Co., Ltd.Web: http://www.microsoft.com/china/service/default.mspxLocation: ShenzhenRecruitment Information:
The Microsoft South China project team recruited three SharePoint development engineers and two WWF development engineers.
Location: Shenzhen
recruitment position: SharePoint development engineers: 3 1. Passionate, responsible, and good learning and understanding skills. 2. 2
There are two types of workflows in WWF: sequential workflows and state machine workflows. Like me, many people who are new to WWF may be confused about when to choose a sequential workflow, when should I select a state machine workflow?
Sequence workflow is the most understandable concept of a workflow. For example, registration> Medical Treatment> payment> drug retrieval is a typical sequence workflow, wi
model during Workflow running.Output and so on to achieve the purpose of the application.
By studying WWF, the functions implemented in the current test demo are summarized as follows:
1. Activity customization: Includes custom attributes and methods, capture custom Activity events;Add custom activity nodes to the designer, and output the defined workflow model to a physical media file,Achieve the purpose of persistence; (this part will provide te
Microsoft's workflow (WWF), Windows Presentation Foundation (WPF), and Windows comunications Foundation (WCF) are Microsoft's Vista and. NET 3. x strategies.
The main function of Windows workflow is to separate the logical control from the form. The logic is created as a specialized workflow file (expressed in C # or XML). The form is the traditional winform, webform, or console. The communication media between them is interfaces ).
There are three ty
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