[WF4]Correlate Multiple Receive Activities

Consider such a workflow: There are two Receive activities. The first Receive activity will create a workflow instance. The second Receive activity functions as a bookmark activity. Imagine that there are two such workflow instances: A WCF request comes to call the second Receive activity. Which... [More]

[WF4]Using WF4 Customized Extension

Here is a simple WF4 extension:    public class SimpleExtension : IWorkflowInstanceExtension {         private WorkflowInstanceProxy instance;         public IEnumerable<object> GetAdditionalExtensions() { &nbs... [More]

[SharePoint 2010]SP2010 First Error – File Not Found

Ok, it is my first time to create a SP2010 site. Top site collection URL: http://localhost:18600/ (http://andrewnb:18600/)New Site I created: http://localhost:18600/TeamSite2/ (http://andrwnb:18600/TeamSite2/) I navigate to TeamSite2. And click Site Actions-> Site Settings And, oh SXXT : Er... [More]

[Math]A Vector Tutorial

Three days, every afternoon, my right brain is suffering pain, I don't know why, may be too tired? I am not sure. I really hope the pain go away ASAP. To learn to create a usable WF4 designer, I decide to have a good look at WPF. So, I pick up some WPF books, and I come across some math problems. I ... [More]

[WPF]WPF Architecture

(From book "Illustrated WPF") (From http://msdn.microsoft.com/en-us/library/ms750441.aspx) Note: milcore is native code. not managed .net code.Custom A WPF Control(From "Programming WPF,2nd") Inheritance Hierarchy System..::.Object  System.Windows.Threading..::.DispatcherObject&... [More]

[I Say]What is the ultimate meaning of life

When you are thinking about this question, you must be depressed on your life. According to <The Hitchhiker's Guide to the Galaxy> there are two answers to this question: 1. LOVE. 2. Suffer. On the contrary, if nobody loves you or nobody you are in love with or you suffer from nothing. I mu... [More]

[WF4]Sequence, Flowchart and State Machine, Which one do I need?

Currently, we have 3 types of workflow in WF4; they are Sequence, Flowchart and State Machine. State Machine workflow is now CTP1, and will be published in .NET 4.5. When your workflow include many sequence process, no much human interactivity, no much backwards. Use Sequence workflow. When your w... [More]

[WF]SharePoint Workflow Solution Spectrum

Out – of – box WF:Some common standardized workflow, say, document approval , Leave request workflow etc. we can use this workflow directly by some configuration. Custom Declarative WF: Non – developers, create workflows by rehost workflow designer. Custom Code WF: Developers cre... [More]