We are rehosting the designer and the System.Activities.Presentation.Toolbox.ToolboxControl in an application. We have very many activities, grouped into quite some categories in the toolbox (>300 activities in 50 categories...)
When I type some string into the toolbox search box, I would like to disappear all categories that have no entry shown due to the active search. At the moment, they all show up as headers without any content and more often than not, I have to scroll down to see the activity that I'm looking for - not really usable:
Is there any way to achieve that, e.g. by setting CategoryItemStyle or CategoryTemplate on the ToolboxControl?