invoke sub StateMachine workflow
Hi, All,
I'm hosting the State Machine workflow in ASP.NETthat uses InvokeWorkflow activity for sub State Machine WF. But at the TargetWorkflow property of Parent WF, I could not choose a subWorkflow for that property in the current project at Designer UI, it always is empty. What am I missing?
BTW, if my stateMachineWF invokes Sub StateMachineWF, and this sub stateMachine WF will invoke another one. how many levels could it be?
for example, workflow 1, WF(1): A1-->A2-->A3-->A4-->A5
WF(2): A2-->A3-->A4-->A5
WF(3): A3-->A4-->A5
WF(4):A4-->A5
So, it will be possible for
WF(1): A1-->WF(2)
WF(2): A2-->WF(3)
WF(3): A3-->WF(4)
WF(4): A4-->A5 // this one will be same as old one
I just simplify this mode for description( it is stateMachine, but here,it looks like sequential WF)
Is there a sample for article for me to reference for this?
Best Regards,
Brain
[1058 byte] By [
BrianBT] at [2007-12-21]
I've actually never been able to get a state machine workflow to successfully spawn a sub-workflow. I tried it in the Feb CTP and got nothing but crashes and exceptions. I'm interested in seeing if there's a good recommendation here.
What I ended up doing was just encapsulating the sub-workflow in a larger encapsulation state and mimicking the hierarchical composition of states pattern.
Tom,
Thanks,
BTW, based on your stateMachine WF sample on Asp.net, we need to add Workflow assemble at Application_Start(), for invoke sub workflow, do I need to add all the sub workflow assembleies at there?
like,
typeProvider.AddAssembly(typeof(ActivityLibrary1.Workflow1).Assembly);
typeProvider.AddAssembly(typeof(ActivityLibrary2.Workflow2).Assembly);
typeProvider.AddAssembly(typeof(ActivityLibrary3.Workflow3).Assembly);
Thanks
Brian
void
Application_Start(object sender, EventArgs e)
{
// Code that runs on application startu
System.Workflow.Runtime.WorkflowRuntime workflowRuntime = new System.Workflow.Runtime.WorkflowRuntime("WorkflowRuntime"); Application[
"WorkflowRuntime"] = workflowRuntime; System.Workflow.ComponentModel.Compiler.
TypeProvider typeProvider = new System.Workflow.ComponentModel.Compiler.TypeProvider(workflowRuntime); typeProvider.AddAssembly(
typeof(ActivityLibrary1.Workflow1).Assembly); workflowRuntime.AddService(typeProvider);
workflowRuntime.StartRuntime();
}
