Query workflow status from Task IP form?

Is it possible to query the workflow runtime to determine what state the state machine is in and what are the valid state transitions from inside an InfoPath Task form?

I’m trying to build a single IP Task form that will modify its UI to match the state of the underlying workflow without duplicating the state machine’s logic.

[625 byte] By [JeffR] at [2008-1-1]

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# 1

StateMachineWorkflowInstance Class

Represents a class that manages the current instance of a StateMachineWorkflowActivity. This class cannot be inherited.

Namespace: System.Workflow.Activities
Assembly: System.Workflow.Activities (in system.workflow.activities.dll)

This class also provides the query interface over the current instance of the StateMachineWorkflowActivity. By using an instance of this class, you can make various queries on the StateMachineWorkflowInstance.

Typical queries that can be made are as follows:

Current state of the state machine.
Possible transitions from the current state.
History of transitions for the state machine instance.
Enumeration of all the states in the state machine.

Everytime there is a change in state, you execute a code activity to store the current state and possible states in taskproperties so that the IP Form can access. Hope this helps.

FrankChiang at 2007-9-12 >