Workflow
Workflow 4 State Machine – Distributed Tracking Visualization · Disclaimer: This post requires an understanding of WF 4.0.1 , WCF and WPF. · Before I explain the how, look at the following image for the what: I am debugging a REMOTE workflow STATEMACHINE instance, and from tracking information sent from server, I am able to highlight the current state in my client! Visual Workflow Tracking Sample – a Big Ball of Mud · Workflow 4 provides the System.Activities.Presentat... class which...
Getting Started System Requirements · Install the following prerequisites: o VS2010 sp1 - Microsoft Visual Studio 2010 Service Pack 1. o Multi-Targeting Pack for Microsoft .NET Framework 4 Platform Update 1 (KB2495638) http://support.microsoft.co... o runtime update (KB2478063) http://www.microsoft.com/do... · Set the Target Framework - project > Properties > Application tab – set the project's target framework is .NET...
After scrapping the Workflow API and starting from scratch with v 4.0 , youd think they would have built the ultimate abstraction, but no - heres my gripes: · Parallel is not parallel, just allows AsyncCodeActivity instances to asynchronously call code and receive callbacks (via BeginExecute and EndExecute) · Non recursive · VB expressions - blah · For Imperative activity definition value assignment to be evaluated during execution (instead of definition) - requires a string representation of code...
Limitations in workflows requiring workarounds: Designer is slow – make a coffee slow! A setStateActivity is not the end of the Workflow’s current flow! In binding, how do you access the properties of dependnecy property sub-properties? a dependency property custom activity for receieveactivity binding must be inside the receiveactivity In rule condition, you cannot reference a dependency property in a custom activity a code activity cannot work on an adjacent activity without explicitly specifying...
About 2 months ago, I had to evaluate MOSS / WSS - compare its features and capacity plan. I'm not sure i want I to go down the Sharepoint path - Its too restrictive, too meta-programmy , it doesnt give you OOTB AJAX enabled WebParts, and is a different path than Silverlight (maybe the next version will be SilverPoint ?). On the flipside, the concepts of pluggable WebParts, InfoPath, Excel Services and Sharepoint Workflows are appealing. Basically, to learn sharepoint you have to read the following:...
· Workflow services, new for 3.5, are services that are authored using workflows. Durable services are services that use a persistence provider to persist state information after an operation has completed. · The implementation of the service contract is handled through one or more ReceiveActivity activities, which are sequence activities that support either one-way or request/response message exchanges with a client. The client invokes operations through SendActivity activities, which are basic...