Third-party builders of workflow activities (like for TFS Build) would like to be able to add their workflow activities to the Workflow Designer Toolbox by either having end users install our activity package using a VSIX deployment (using the Visual Studio Gallery) or by an MSI Installer.

This process would be similar to the way other third-party component vendors are able to add to the toolbox for WinForms, ASP.NET, Silverilght, WPF, etc. controls. We would like the same functionality for Workflow Activities.

Original Forum Post with more details: http://social.msdn.microsoft.com/Forums/en-US/vsx/thread/410242a8-42ac-42b6-8fcf-08088bd5b31a

Intellisense should work automatically against C# and VB expressions but also allow hooks for other expression languages.

as it works with Visual Studio already

Provide an updated Business Rules Engine for .NET

Take a BPMN diagram and provide a one-way conversion to Workflow

It'd be great if we could call Workflow Services directly from an AJAX application through REST/JSON endpoints. The current inability to define a contract first when defining a Workflow Services prevents us annotating the contract with the [WebGet] attribute which would be the obvious way to enable both a SOAP and REST endpoint on the same service.

Refactoring support should work in both Visual Studio and Re-hosted designer scenarios.

Add the ability to write styles for the Rehosted Workflow Designer (e. g. change background to black or change the yellow parts of the designer to blue, like in VS 2012)

UI Workflow Foundation it´s not natural for Business Man.
We host workflow designer in our software and our power users and business man can make workflows, but everyone doesn´t like the UI because they already know BPMN.

My question is about the Flow Decision designer object. Can I change the sides that the "True", "False", and Inputs come from? Currently, True is always to the left, False on the Right, and input is at the top or the bottom. Naturally some flows become very "Messy" because of this. I know that I can always 'Not' the condition to switch the true and false, but that is sloppy. Thanks!

UL

Make the Expression Editor remember size and position so I don't have to resize the window every time again when I enter a large expression. Or make at least default size bigger.

An API should be provided which allows code to query the current state of the state machine from an instance store or from an in-memory instance. (from CodePlex Discussion)

Obviously comments have their place and should not be over-used. XAML activities unfortunately have no support for them however. Trying to comment reasoning for a workflow implementation is not possible without using an activity to express it.

Having support for annotations against activities/artifacts in a workflow would prevent executable activities being used for this purpose.

I would like to use designer to switch Variables and Arguments. A variable could move to arguments list. And an argument could move to variables.
It could be a good refactoring feature.

Add the ability to work with a workflow as code in the VS IDE...

Or - have the ability to write code in C# / VB and have it compile into a workflow which can be run in workflow foundation.

Many people write programs in c# and VB, doesn't it make sense that an entire workflow should be able to be written in one of those languages? XAML is a hard language to write a workflow in as it is very verbose when coding, and the visual designer can be much more difficult to work with than a textual language.

It could be really usefull when we have to load xaml files (XamlServices.Load) to know assemblies referenced before to instanciate an activity.

It could permit to preload assemblies.