wf 2520

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

Code: Overview Data is transmitted through the use of variables. Variables and parameters used in the activity [In parameter]. The value of the correlated variable can be passed In. When the parameter is modified internally, the correlated variable is not changed. [Out parameter] The correlated variable value cannot be passed in. When an internal parameter is modified, the associated variable is updated. The value of the [In/Out parameter] correlated variable can be passed In. When the int

Instance Code: \ WF_WCF_Samples \ WF \ Basic \ CustomActivities \ Code-Bodied \ ExecutionProperties \OverviewIExecutionProperty Interface Definition: Provides the execution attribute mechanism, which is used to configure the Thread Local Storage (TLS) before and after the work item of the relevant activity ). This interface has two members:CleanupWorkflowThread: exectionproperties is manipulated when TLS is destroyed.SetupWorkflowThread: sets Executi

Series Directory: WF Series 3 Out-of-the-Box Activities topic directory 3.2.1 CallExternalMethod ActivityCallExternalMethod Activity is an important component in the local communication service.To use this Activity, you must set two attributes: InterfaceType: Specifies the interface used to define workflow communication. MethodName: Specifies the method to be called. Citation: Why is CallExternalMethod limited to methods that call known interface

The master who wrote the book lost nothing and the code was not completely copied. As a result, I spent some time organizing the code. I want to thank a man on the Internet for organizing the code, unfortunately, I don't know his name. Today I found these codes in my hard drive and decided to publish them for sharing. Hello everyone. Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Using System; Using System. Collections. Generic; Using Sys

Recently, when I was coding a simple enought WF service program. I found a weird problem by using the WCF test client tool. My WCF endpoint is http: /localhost: 8000/wfservices But if I acess this address in my chrome. I got a message like this. the Service Page has some helpful tips to enable metadata for a WCF Service. unfortunately the same tips do not apply to a WCF workflow service. in previous releases of WCF you had to apply a s

1. Summary Remember the one in "Step by Step WF series (6)-workflow voting simulation project"Program? In that articleArticleWe used a workflow to simulate a simple voting project. In this article, we will continue to improve this voting item. 2. Purpose In the above Article, our voting project is indefinite, but we should consider the actual situation, for example, a vote of the most popular singer, which requires a deadline, for example,

(); Ruleconditionreference1.conditionname ="Condition 1"; This. Whileactivity1.condition = ruleconditionreference1; Load to the cyclic activity. Communication between the host Program and workflow How to pass parameters to a workflow: Define member variables in the workflow: Public String tofolder {Get; set ;} Public String fromfolder {Get; set ;} Public int totalfiles {Get; set ;} When the host program initializes the workflow instance, the parameter is passed in VaR parameters = new

When developing a workflow, I encountered a lot of low-level problems and wasted a lot of time. I will record them here for future reference. There are often some inexplicable problems, such as the failure of breakpoint debugging (including other aspx) for workflows and the failure of applications for new workflows. At this time, IIS has not updated the. NET cache. The solution is to delete files in c: \ windows \ Microsoft. NET \ framework \ v2.0.50727 \ temporary ASP. NET files. Some tim

After Microsoft released the Windows Communication Foundation (WCF) and Windows CardSpace sample programs, Microsoft released the WF tutorial and a large number of examples today, it is a good learning material. Download two compressed packages, including the tutorial and example, in the example section, including the following Application: L OrderingStateMachine L OutlookWorkflowWizard L SpeechApplication L TerminationTrackingService L TrackingP

according to certain rulesWhere X:class= "Helloworkflow.workflow1" is the class name that corresponds to compiling the xoml file into a net classHost ProgramWhen created using the [Workflow Console application] template, a console host program for the test process is automatically created, as follows Class Program{static void Main (string[] args){Workflowinvoker.invoke (New Workflow1 ());}} where [Workflowinvoker] is a function class for invoking a workfl

Designing business process platform based on WF _ message collection and notification Interfaces If a non-system user needs to interact with certain nodes of the business process, as shown in the following figureBusiness Requirements Design Scheme Problems with this solution: Both the receiver and approver have the business responsibilities of notifying the applicant, However, if the applicant is a non-System participant, the information inter

This example was originally intended to be uploaded on Monday, but Qu bin sent me some WPF materials. He thought that WPF wanted high-end video card support, so he never paid attention to it, it's strange that MS's customer service has not been clear about the killing of people with a conventional thinking. I have read about WPF over the past few days. It is a bit like SVG and I like it. In the future, WEB and WinForm can use a set of interfaces. There are two direct consequences of looking at

About dynamic Updates As we develop workflows, we design our workflows in the Workflow Designer by dragging activities, setting properties, and so on, and we hope that the workflow that we defined at design time is unchanged at runtime. But in practice we often need to change the structure of the workflow at runtime, for example, we have defined a process in which we need to add a process point at the end, and this time we need to use dynamic update to reality. In

This paper takes control of a group of logical circuit switches as an example to demonstrate the application of WF in the algorithm, and this article is a combination of [rules engine], we can be a good comparison of the effect of C # code, State machine, rule engine, flow chart in the process control and algorithm of the respective characteristics In the [Rule engine] article, I use C # code separately, WF3. X's state machine workflow, WF3. X's rule

PowerShell provides the function of the command line management system, but in general, the operator to complete a business needs a number of sets of PowerShell commands, this will be cumbersome, error rate is also higher. The operator can write PowerShell scripts to organize orders, This article describes how to use WF to organize PowerShell commands, allowing the operator to care only for specific commands, and to organize logical relationships betw