IdlingEvent Problem

[Anonymous]

I am trying to implement Idling event, anyway when i debug the codes, looks like program cant finished every line in this function where it stop at this line:

UIApplication uiapp = new UIApplication(app);

Below is the Idling function:

        void OnIdling(object sender, IdlingEventArgs ea) {
            Application app = sender as Application;
            UIApplication uiapp = new UIApplication(app);   //debug stop here
            UIDocument uidoc = uiapp.ActiveUIDocument;      //debug never reach this line
            Document doc = uidoc.Document;
        }

Anybody understand why? Is my Revit idle cycle time too short? If yes how to control idle cycle time?

[jeremytammik · Accepted solution]

You cannot control the Idling cycle time, unfortunately.

Afaik, Revit calls the Idling event as often as it possibly can, which may affect system performance.

Therefore, in most cases, I prefer using an external event.

I only use the Idling event if I want to be notified once only, as soon as possible, and then unsubscribe from it again.

Here is a description of switching from the older Idling event to the more modern external event:

http://thebuildingcoder.typepad.com/blog/2013/12/replacing-an-idling-event-handler-by-an-external-ev...

With the latter, I can control the polling frequency myself.

For simple official minimal samples of using these two, check out the two ModelessDialog samples in the Revit SDK.

Cheers,

Jeremy