Recent update: 2008-3-21
Hi group members Couple of days back i am showing WWF to some of my friends who happen to be software engineers , well one of them ask is it possible (or in future ) to host a wwf in Linux ?. Well i guess we dont have that support right now .
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Jana at 2008-3-6
Please ignore this post.
When is scheduled Beta2?
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urraca at 2008-3-3
Is possible to create a custom activity and include some GUI, so when that custom activity is used in a workflow the user would be able to double click the custom activity and set properties?If so, where can I read some documentation about it. I think that, maybe, I need to override some method ...
I'm seeing here that when I launch the VS debugger on a workflow project, just setting up a couple of breakpoints into the code (not the designer), VS will always open up the Task List and Toolbox windows on the debugger. Even if I close them down, as soon as I launch the debugger again they ...
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laan at 2008-2-28
If I have a XAML (XOML) schema how can I deserialize and execute it?
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urraca at 2008-2-27
I've created a custom activity with 3 properties (p1,p2,p3) all of them System.String. I'm using that activity in a workflow with parameter wfp1. How can I put the value of wfp1 into p2 using the visual designer? Regards.
It seems that if you select a UI type editor on a property of a custom activity, there's no way to remove it later on. If you go into the Property definition window, and just clear the UI Type Editor field and save the changes, the type editor is not removed from code (though if you change it ...
I've started playing with WWF this week, and noticed something I noticed is that if you are defining a rule for an activity (say, a condition from an If's branch), and you add a predicate to it, the designer (in this case, the rules expression editor) uses the "this." syntax to refer to ...
I was trying to track down an exception that was bubbling to the top of the stack. I went into Debug->Exceptions options and set all exception types to be caught when they are thrown (not just when they are unhandled). To my surprise, there are a great deal of exceptions thrown while the ...
Are there any samples that would show how to create and/or modify a workflow programmatically, i.e. from a program, not from VS.NET IDE or a hosted designer? For example, the program would create a new workflow, add a couple of activities to it, and save the serialized workflow definition (in a ...
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CHS at 2008-2-22
Hello,i tried to model a custom activity. This activity does contain of a) InvokeMethod Activityb) EventSink Activityout of the activity galery delivered. I also implemented a Service which I added to the workflow engine in order to connect the method invokation and the event sink.Then I build ...
If I start with BizTalk 2004 today, is there a migration strategy for converting the workflows to WWF?
Posts 2How can I fetch a specific IfElseBranchActivity's ConditionName and Expression from ASP.NET webformQuestion Reply Quote Delete EditHi,I'm developing ASP.NET 2.0 & State MachineQuestion:How can I fetch a specific IfElseBranchActivity's ConditionName and Expression from ASP.NET webf...
I am using InvokeMethod to call into a DataExchangeService. However, if the service was not added to the WorkflowRuntime before the activity is executed the workflow hangs and the process consumes 99% of the CPU. WorkflowRuntime.ExceptionNotHandled is not fired. ...
I want to create an activity with several child activities. I do not want the child activities to be modified and I do not want other activities added.I could start with System.Workflow.Activities.Sequence and set each of the child items Visible property to False. But when my activity is placed ...
I created a new Windows Application project today, added all references to the Workflow assemblies and then added a Sequential Workflow (code) to my project. Every time I open the designer I get:The service 'System.Workflow.ComponentModel.Design.IMemberCreationService' must be installed for ...
Hi group membes The Book named "Presenting Windows Workflow Foundation" by sams seems to be a very good introductory book , but alas i dont have it . Is there any one who had this book in electronic format? or some one who already read it and now wants to give it away ........ (may be to me ...
Just want to know that is it possible by means of any tool that I can take some of the Business Rules (which might be in some predefined format much more baised towards Busseness users along with thier terminology ) and then transfom them as a WWF workflow (not need to be an elobrated workflow ...
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MetroP at 2008-2-16
I installed Visual Studio 2005 RC and on top of it the Workflow SDK from the PDC disc 4.After this I can create a workflow project. However when double-clicking on a xoml file I see the xml rather than the graphical representation.Any help is appreciated. ...
Curently you can bind dependant properties of one activity to a property of another. But I don't see a way to bind a dependant property to a parameter passed into the workflow. Is there a way to do this? Could it be added? Jared
CompositeActivity has an ExecutableActivities property that returns all child activities that will be executed. I'm sure ExecutableActivities takes into account whether or not a child activity is commented, but it may also include other factors.I was hoping that Activity would have an ...
Has there been any thought given to multi-modal activities and workflows? As an example, we may want to create a workflow that could run as a desktop application or on our IVR (phone) system. Such a workflow may begin with a Login activity that presents a login dialog on the desktop or prompts ...
Thanks. I'm running 64 bit windows and have been unable to install the 64 bit version of the SDK. It bombs out about haflway through. Has anyone else experienced this problem?
Hi group members Hope u be doing gr8 with WWF , well did any body try a distibuted (but tightly coupled , as the complete objects/context may also be needed to be passed) Work Flow in WWF . Like couple of activities run on Machine A then Other on Machine B (see figure below )Machine A Machine B ...
Hello, I am investigating the possibilities of using WWF to create a tasklist (aka worklist) application. How is this supported in WWF? Are there any information available about this somewhere? Best regards / Rasmus
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Ula at 2008-2-14
Hello,I recently updated from Visual Studio 2005 to Visual Studio 2008. I am creating some composite activities (for example public partial class MyActivity : CompositeActivity.....)and then when I go to designer I cannot add any activities from toolbox. It does not show any error after compilation...
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JulesW at 2008-2-14
Hello,I have started playing about with State Machine workflows, starting with the BasiStateMachine sample. But I cannot work out how to display the Transisiton lines between the states. There are SetState between StartState,state1 and state2, and the sample works OK. Can anyone advise what ...
Hi,the announcement of WWF and the beta are great news. There are nice ways to run and sync workflow services in parallel. But I would like to know in what way the WWF framework supports parallel workflows in one service, i.e. in different threads:Do I need different workflows in seperated ...
I'm working with the External Ruleset Example (great sample!) and the Ruleset Editor.The Ruleset sample executes rules I create using the Ruleset Editor except when a rule has multiple conditions. For example, I have a rule that's something like this:Condition: this.Color.isGreen && ...
How do you go about utilizing WWF in a web application? I'm currently looking into building a workflow system for publishing web pages in a cms. I've got a basic workflow built and have been testing it using a console application. I need to port this workflow to the web application where ...
I just successfully install the WWF , its really rocks! . Now i want to do some experiment , as we are free to Host the WWF Process , what about dping it for SharePoint Portal Server 2003 , and write a simple Document WorkFlow for it guyz and suggesstion on that , ...
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Adam at 2008-2-10
Hi. I'm using windows workflow inside of ASP.NET. For some reason, the only way I can link up to events fired from my local services is to wire them up in the actual event handler where I do my work on the workflow. Here is the start of my button click handler: protected void btnStart_Click(obje...
I've installed and played around a bit, but I haven't looked closely at the XML resulting from the designer. Is it BPEL? or something else? How close is the graphical notation to BPMN from BPMI?
Does anyone have any examples of a state machine wrapped in a web service? The Presenting WWF book briefly touches on the subject but doesn't give any substance.
In WWF, you compile a workflow, which I believe calls the workflow compiler wfc.exe, and then calls the C# compiler, which outputs a .NET assembly. What I'm wondering is how this will work for end-user workflow design, where I have re-hosted the designer in my own app.Will this require me to ...
There have been several threads with questions about installing Windows Workflow Foundation Beta 1. I'm hoping to summarize the installation instructions for anyone else that might be having trouble. These instructions are also available on the WindowsWorkflow.net community site here. James ...
Hi Group Members Being a .NET Developer and a MS Server Faimly Product Consultant i am really excited about the new Work Flow (WWF ) believe me the ppl that had work on SPS 2003 and CMS 2002 will feel a lot more comfartable by seeing a Uniform Platfrom for a WorkFlow Solution , now I got some ...
Beyond the Activity objects which have been posted online, what other Activities & Workflows will shipping with WinWF when it is released?I'm sure the developers here on this forum would like to focus their efforts in areas that are not redundant with the shipping framework...Lastly, what ...
I am using team suite beta 2 (.44 build) and installed the sept. runtime, sdk, and vs extensions on 2 different machines, but the WWF projects never show up in the New Project dialog. Also opening a sample (DocumentReview) tells me that the "project type is not supported by this installation". ...
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TypeOf at 2008-2-7
In the "Presenting WWF" published by SAMS it talks about Office using a SOAP wrapper to expose information to the Share Point Server. Does anyone know if the actual Workflow Runtime is running within the webservice?
Some of the demos of workflow have shown people being sent e-mails with approve/reject url links in them. This, however, raises the question of tamper-proof URL's, and of secure authentication. We don't want users changing url's to do something else. We also don't want other people ...
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Pioter at 2008-2-6
Hi I was wondering how the GUI design in the new Windows Workflow tool looks like. Does anyone have a screenshot of the GUI? Thanks Pioter
I want to implement a designer at runtime for my clients so they can create their own Workflow. As there is no out-of-the-box control to implement this I suppose I have to work with the workflowview class explained in lab 12. I implemented this functionality but now I'm having some problems: ...
We're interested hosting a single workflow runtime to manage all our workflow instances. These workflow instances are mostly human user approval processes that could span days. The primary method GUI for approving/rejecting will be through a web application. If I implement my workflow runtime ...
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Tahoo at 2008-2-4
I am trying out Windows Workflow Foundation on my VS 2005 Version 8.0.50727.7.I created a new project using the C# Sequential workflow template.When I try compiling, I got this warning message:The "System.Workflow.ComponentModel.BuildTasks.CompileXomlTask" task could not be loaded from the ...
IfElse is fine, but we would like a very simple YesNo container that branches based on a property value of the preceding activity. Any suggestions on how this might be implemented? Is it possible to determine the task immediately before your task? What steps are required to present a drop-down ...
Hi,When trying to view a workflow designer in VS 2005 Beta 2 with the PDC CTP .NET 2.0 install, I get the following error:Could not load type 'System.Runtime.CompilerServices.RuntimeCompatibilityAttribute' from assembly 'mscorlib, Version=2.0.0.0.,Culture=neutral, PublicKeyToken ...'Any ...
We have created a Login activity. It currently has two properties, AllowedAttempts and Authenticated. AllowedAttempts is like any other property, but the Authenticated property should be read-only and its value should only be changed inside the activity as part of the activity execution. What ...
Hi We are a chemistry research company building solutions with Microsoft technology. We're interested in MS's Workflow framework. My specific question is: If you build a workflow with the workflow designer in VS 2005, can you run or debug the workflow (visually?) In other words, if my ...