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Passing a global parameter/argument to a workflow

Posted By:      Posted Date: September 19, 2010    Points: 0   Category :Windows Application

I am using a hosted workflow designer to allow users to create their workflows. I would like them to be able to execute the workflow in a 'Test' mode, so I am trying to pass a parameter that indicates it is test mode.

In addition to the workflow being run from the rehosted designer, it will also be getting executed by an automated Workflow Console Application. So when the workflow is executed from the rehosted designer, it should execute in test mode. When it is executed from the console application, it should execute in production mode.

I thought I would just be able to pass a paramter indicating which mode to run it in, but the only way I can seem to get it to work is to have an Activity already on the workflow and setup the Argument for them through the designer and assign the expression prior to run time. The problem is that the user starts out with a blank workflow with no activities on it. I do not know which activity the user is going to add to the workflow, and I don't want them to have to be able to figure out how to configure arguments. It is an argument that should just always be there.

All the activities that I've made available to the user are inherited from a base class which inherits from NativeActivity. So is there anyway to dynamically bind the activities to the argument passed in at runtime in the base class?

I am invoking

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