workflow-foundation | 易学教程

WF4 RC - Cannot create unknown type when loading WF Service from loose Xaml with ActivityXamlServices

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问题 I am trying to host a WF4 (RC) Service dynamically. I have a test solution with two projects. The first is a declarative workflow service library with one root Flowchart activity in it, and a simple custom code activity. The workflow service library does not depend on any other custom assemblies or references. The second is my host app, which in my test solution is just a console application. In my host app, I am attempting to the use ActivityXamlServices to load the Xaml for the workflow

Windows workflow [closed]

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问题 Can anyone explain what is windows workflow and how can we use in the work organization. 回答1: Windows Workflow Foundation is a fascinating concept. It allows you to create powerful applications (or just parts of them) using a combination of flowchart-like concepts and normal code. The deeper value of this may not be immediately obvious. Say you're building a large e-commerce site. Over time, your workflows for processes such as fulfillment will change radically. The code will eventually

RESTful Workflow Service Endpoints in WF4 / WCF

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Folks, I'm building a pretty standard workflow that I want exposed via a WCF endpoint - I'm using the "WCF Service Application" project template and I've got a .xamlx service. This is a very simple document interchange workflow service - I want consumers to POST me a blob of XML as the body of an HTTP post (with HTTP headers containing authentication tokens). In response, these consumers will get a blob of XML containing the reply. 2 goals for me using REST/POX here are the document/message-based nature of the interaction AND I want to make client development easy for non-.NET environments

Open alternatives to Windows Workflow

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问题 Pre-warning : There are some other questions similar to this but don't quite answer the question (these include: Alternatives to Windows Workflow Foundation?, Can anyone recommend a .Net open source alternative to Windows Workflow?) We are developing a system that is an event based state machine, currently we are investigating windows workflow, our system needs to be low latency in its response to events from a multitude of sources (xmpp, http, sms, phone call, email etc etc) coming into the

Can anyone recommend a .Net open source alternative to Windows Workflow? [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . What alternatives are there to Windows Workflow in the .Net stack? And if you have used these solutions, what made you select them over Windows Workflow and was it a good choice. Update: I went ahead and selected stateless created by Nicholas Blumhardt. This is a very simple approach to modeling states in a

Why use Windows Workflow? [closed]

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What is the benefit of using Windows Workflow foundation (WF) versus rolling your own workflow framework? From what I can tell, WF only provides a pretty bare-bones runtime engine, a bunch of classes, and a schema (XAML-based) for defining workflows. All the hard stuff such as persistence, providing a host process for the runtime, and implementing distributed workflows (across processes) is left up to you. Plus there is a learning curve to using WF... if we created our own workflow framework we would simply leverage skills that all developers already have (C#, XML, SQL, etc). I saw this blog

RESTful Workflow Service Endpoints in WF4 / WCF

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问题 Folks, I'm building a pretty standard workflow that I want exposed via a WCF endpoint - I'm using the "WCF Service Application" project template and I've got a .xamlx service. This is a very simple document interchange workflow service - I want consumers to POST me a blob of XML as the body of an HTTP post (with HTTP headers containing authentication tokens). In response, these consumers will get a blob of XML containing the reply. 2 goals for me using REST/POX here are the document/message

Workflow Design Dilemma - State Machine, yes or no

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I'm a beginner with WF, but I've read a book and done a lot of googling. I want to write an inventory management service. The inventory is made up of individual items which have a state: Spare Installed In-Repair Items may spend months in each state, and there are thousands of items. The question is, do I create a state machine workflow for all the different states? Or do I create workflows for transitioning between states? If I understand correctly, if I create a single state machine workflow, then there will always be a workflow running for every item. This means thousands of ever-running

What are your experiences with Windows Workflow Foundation?

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问题 I am evaluating WF for use in line of business applications on the web, and I would love to hear some recent first-hand accounts of this technology. My main interest here is in improving the maintainability of projects and maybe in increasing developer productivity when working on complex processes that change frequently. I really like the idea of WF, however it seems to be relatively unknown and many older comments I've come across mention that it's overwhelmingly complex once you get into

When to use Windows Workflow Foundation? [closed]

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Some things are easier to implement just by hand (code), but some are easier through WF. It looks like WF can be used to create (almost) any kind of algorithm. So (theoretically) I can do all my logic in WF, but it's probably a bad idea to do it for all projects. In what situations is it a good idea to use WF and when will it make things harder then they have to be? What are pros and cons/cost of WF vs. coding by hand? Panos You may need WF only if any of the following are true: You have a long-running process. You have a process that changes frequently. You want a visual model of the process.