wf 2530

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Some suggestions for learning Wf

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

WF from Getting started to proficient (17th chapter): Correlation and local host communication (on)

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

WF 4.0 Beta1 Activities Overview (1): Procedural

We can use these activities to author workflows or create custom activities, compared to WF 3.5,WF 4.0 Beta1 provides a large number of out-of-the-box activities. This article will make a quick and easy overview of these activities and describe their key features. An activity is a unit of work for a workflow program. In WF 4.0, the activity consists of a signatu

How to Learn WF

How to Learn WF After the release of NET4.0 Bata 2 in March October, I began to write the [WF4.0 Basics] series. After more than five months, I finally completed the series before the official release of NET4.0. During this time, I had some conversations with developers and companies interested in WF4.0. Some companies that are interested in WF have started to use WF4.0 to develop business process manag

WF in NET4.0 CTP

In the morning, I posted an article [WF workflow designer (WPF version) (the code is downloaded in the article) which has a built-in process debugger, if you have business requirements, you can integrate the designer into the business platform.], Today, many of my friends are interested in the release of Visual Studio 2010 CTP. I decided to write an article about WF in NET4.0 CTP. This is the code mentioned

WF rule designer

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

WF4.0 Basic article (i) Start using wf--

Recently the company to re-launch a new set of CRM system, to restructure the old system of business Flow module, team discussion has Microsoft's workflow as the technical basis. I have not been involved in the relevant knowledge, the current project has not begun, the early stage to learn and understand the system under the WF for later development lay some technical foundation. This article is to open the title film, do some simple introduction and

Persistence in learning WF (22): Tracking rules

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:

One step to learn WF series (2)-workflow and Visual Studio

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

Think of: WF and SharePoint

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

WF Study Notes-development Basics

. 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

Design business process platform based on WF _ multiple statuses of the same process

Design business process platform based on WF _ multiple statuses of the same process A status chart is a design chart that is frequently used in workflow design, When talking to me about the status chart, many process designers often say that they are familiar with the legends of the status chart in UML, but every time they draw a status chart of the business process, I always feel that the painting is not easy. In fact, when drawing a state char

From getting started to mastering WF (chapter 7): basic activities

Previous Article: WF from entry to entry (Chapter 6): loading and detaching instances After learning this chapter, you will learn about:1. Know how to use Sequence activities2. Know how to use Code Activity3. Know how to throw an exception in the workflow and handle it.4. Know how to pause and terminate your workflow instance in code In this chapter, we will officially introduce a set of activities that we have seen earlier: Sequence activities and Co

Workflow Services-Workflow visualization design with WCF and WF 4

Developers are increasingly using service-oriented architecture (SOA) as a way to build distributed applications. For inexperienced people, designing and implementing service-oriented distributed applications can be daunting. However, Microsoft. NET Framework 4 Enables Windows Communication Foundation (WCF) services to be implemented using Windows Workflow Foundation (WF) more than ever More simple. WCF Workflow Services provide an efficient environm

SharePoint State Machine Workflow Solution (ii): WF state Machine in SharePoint

In the previous article, we mentioned that SharePoint is a workflow platform that encapsulates the event-driven interface on top of the WF workflow engine; SharePoint extends a lot of activity on WF, where three common activities that are closely related to WF are: ONWORKFL Owactivated,createtask,ontaskchanged. A simple SharePoint sequential stream. onWorkflo

WF from Getting started to proficient (eighth chapter): Calling external methods and workflows (i)

start with this. We will build the necessary system to meet the thread data serialization to carry out data transfer between computers or between processes. Create Externaldataservice Service When a workflow communicates with its host, the workflow uses queues and messages when it sends and receives data. The more we do with WF, the more we can focus on the solution of specific tasks in the application. Workflow internal Process Communication For

WF from Getting Started to proficient (chapter II): Workflow runtime

After you have completed this chapter, you will learn: 1. Use workflow in your application 2. Understand the basic functions of the "WorkflowRuntime" object 3. Know how to start and stop the workflow runtime 4. Ability to use a variety of workflow runtime related events When you perform a task in a WF environment, you need something to oversee the execution process, which is the object named "WorkflowRuntime". WorkflowRuntime to start a separate

Persistence of WF workflow instances

WF workflow instance persistence (passivation) is very important in workflow projects. In actual business, almost all business flows can be completed after a long time, in this way, the unfinished business flow needs to be persisted to the database or file. WF itself provides the sqlworkflowpersistenceservice service to support instance persistence. PublicSqlworkflowpersistenceservice (string connecti

Persistence in learning WF (15): State Machine Workflow

[Stick to the top] Stick to learning WF Article Indexes This article mainly introduces the basic knowledge of the state machine workflow in WF. The state machine workflow and sequential workflow are different. Ordered workflows are generally relatively fixed and predictable, and there are many interactions with the system. State Machine workflows are generally unpredictable, and there will be more interac

Persistence learning WF (18): using the ipendingwork Interface

[Stick to the top] Stick to learning WF Article Indexes WF regularly checks the persistence point and saves the workflow instance to the persistent storage. In this way, information related to the workflow is stored if an error occurs or the workflow ends abnormally, the next time the workflow instance is loaded, it will start from this point. This is mainly for work-embedded services. The external ser

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