Workflow Foundation 4 - How to create a web based representation of the workflow?

We have to write a ASP.NET site based on a workflow.

The client wants to see a graphical representation of the workflow. In addition (let's say it is a workflow for processing orders), the client wants to see at what point in the workflow any given order is, indicated on the grap开发者_运维知识库hical workflow representation by a highlighted node or some visual queue.

All of this must be available via a web interface.

Was hoping somebody had some bright ideas for how to achieve this without writing extensive custom controls.

Does Workflow Foundation 4 offer anything itself that would assist toward this end?

There are ways to use the WorkflowDesigner and issue the save image command through code but as it's a WPF control it needs to be hosted on a WPF form. I have tried to do this from a webpage but as the form isn't visible it has a size of 0. I didn't spend a lot of time in this so it might be possible.

See this for details on how to do so.