Parameter Changed Event Listener

[Anonymous]

I'm trying to see if there's an event listener for parameter changes.  Does anyone know of anything - I can't find any leads.  Or, can anyone help me create something to accomplish this?

[aignatovich]

Hi!

Look at Dynamic Updater framework. Implement IUpdater interface and register it using UpdaterRegistry:

UpdaterRegistry.RegisterUpdater(updater, true);

UpdaterRegistry.AddTrigger(updater.GetUpdaterId(), filter, Element.GetChangeTypeParameter(parameterId));

Look at Samples\DynamicModelUpdate\CS in Revit SDK and http://thebuildingcoder.typepad.com/blog/about-the-author.html#5.31 for further details