My team is looking at Windows Workflow for our next project. We'd like to buy a book about it. Which books do you recommend? One book per answer. Link to Amazon (or similar, but at least include the ISBN). Vote up an answer if you liked the book. Comments about why you liked/disliked the book are welcomed. Not Windows Workflow 4. We'r...
Hello I am planning to use the State Machine WorkFlow of Windows Workflows. The state machine will be receiving events from two separate threads, the state machine of course will both change its state and execute actions based on its current state and the event that came in. My question is, is the state machine of windows workflow thr...
I'm using HandleExternalEventActivity with Roles property and I need to check if my custom bool RoleProfile.IsDelegatee(string userName, string workflowName, string activityName, string eventName, string roleName) method finds a match. ("I'm on vacation; UserX should be able to approve 'task X' on my behalf, but not 'task Y'") I tried ...
I have a Sequential workflow with a Policy Rule . When I run from the client, I get the following error: "The workflow failed validation." Activity 'policyActivity1' validation failed: Can not find the rule set "Rule Set1". Check if rule set is defined in the rules file. Can anyone point me in the right direction.... ...
When I try to update the task properties of the workflow from my webpart, I get the following exception: Microsoft.SharePoint.SPException: Task Updates are not allowed via unstrusted code at Microsoft.SharePoint.SPListItem.PrepareItemForUpdate(Guid newGuidOnAdd,Boolean bMigration, Boolean& bAdd, Boolean& bPublish,Object& objAttachmentNa...
Here is the stack trace of exception I get when workflow is persisted . System.Workflow.Runtime.Hosting.PersistenceException: Type 'System.Xml.XmlElement' in Assembly 'System.Xml, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable. ---> System.Runtime.Serialization.SerializationException: Ty...
Hi All, I have an windows application written in WPF and WF which also interacts with external web services and a local copy of Quickbooks via Quickbooks API. Everything is working nicely, however the only problem is even after we quit the windows application and Quickbooks, we still see the windows application executable sitting in ...
This seems like an elementary question, but I can't find the answer anywhere: I have several different types of long-running state machine workflows that I am working with across multiple host applications with a central database. I am using the SqlWorkflowPersistenceService to persist them. So say I have three workflow types WorkflowO...
Hello there! Is it possible to integrate the .net workflow foundation editor (from VisualStudio) or a similar control into an other application? Otherwise i have to program it by my self. I have to realize an interactive diagram chart in which the user can put in new actions, parameter and something. Thanks for your information! ...
hi there, i´m currently dealing with a system where i have to track the state for several thousand objects in parallel that send possible state updates a few times every minute. In addition i have to perform additional computation (no slow IO stuff, just using CPU). I currently use a custom state machine implementation. however, as WF ...
I'm working on the licensing component of a commercial product, and I'm trying to make sure all of our complicated licensing modes work seamlessly. I'm considering using a WWF state machine to keep track of the licensing state so we can be sure the software accurately follows the product licensing terms we state to our users. I've alread...
Hey all, I have created a WinForms to handle Persistence Activities using the Windows WorkFlow Foundation. I'm using the .NET 3.0 SQL and VS2005 as the IDE with C# as the code language. Also, the environment is mandated to me by the corporate policy for development. So until the dinosaurs decide to upgrade, I'm stuck with VS2005. My ...
Hello, I'm developing a distributed application I have a web page (ASP.NET) to submit information. This information needs to be handled on a specific way, so I'm using Windows Workflow Foundation. Let's call this WK1 (Workflow 1). During this flow I need to notify certain users and get info from them aswell, so I choose to notify the...
Despite going on a training course for Workflow Foundation earlier this year, I recently abandoned an attempt to use it in a project because there were just too many compromises to get it to work. There are few extension points (everything is sealed, and the mechanisms for getting data/events into and out of a workflow instance are just...
I'm running a workflow runtime that contains an SqlWorkflowPersistenceService & SqlTrackingService (with IsTransactional = true) WorkflowInstance workflowInstance = _workflowRuntime.CreateWorkflow(workflowType); workflowInstance.Start(); // Assure persistence workflowInstance.Unload(); // Error occur here workflowInstance.Load(); Th...
I'm attempting to make a StateMachine execute some database action between states. So I have a "starting" state that uses CallExternalMethodActivity to call a "BeginExecuteNonQuery" function on an class decorated with ExternalDataExchangeAttribute. After that it uses a SetStateActivity to change to an "ending" state. The "ending" state...
Is there support for attached properties in WF4? If not, how are scenarios common to attached properties ("arbitrary property of parent associated with children") supported in WF4? ...
I'm evaluating the new version of Workflow Foundation (4.0), but I'm a bit confused about custom activities. I'm using the Beta 1 bits. I believe that if I want to create a custom activity I should extend WorkflowElement, and if I want my custom activity to hold other activities I should extend Activity. However, WorkflowElement appea...
Are there any tools which can reflect over Windows Workflow or SharePoint Workflow assemblies and generate a .png or some other image type to present to a user? Dynmically via ASP.NET? Or if there isn't anything like this... how do you provide documentation / end-user documentation? I would be interested in free or non-free tools. ...
I have given user a re-hosted designer with custom activites so that user can create its own workflows. Now I want to give user option to save the workflow designed in re-hosted designer, an Xaml file, in WF 4.0. I want to save workflow along with the activity variable/property values. How can I do that? ...