Events triggering twice

Rhino Developer
,
1

Hi,

I am really stuck in this problem and couldn’t find why it is happening after many debuggings. It is happening in both Rhino and Eto.Forms events.

I know it is hard to understand without seeing whole code but, maybe you know why it is potentially happenning.

I have some lists that MyPlugin handle it’s operations with them and I am cleaning this list after deselection.

// Registration method for constructor
private void RegisterControlEvents()
{
     RhinoDoc.SelectObjects += RhinoDoc_OnSelectObjects;
     RhinoDoc.DeselectAllObjects += RhinoDoc_DeselectAllObjects;
}

// Sample of handler
private void RhinoDoc_DeselectAllObjects(object sender, RhinoDeselectAllObjectsEventArgs e)
{
    SelectedPluginObjects.Clear();
    SelectedCurves.Clear();
}

PS: I am sure, there is no another subscription for this event

What am I missing?

Thanks in advance

2

Hi @oguzhankoral,
If you are trying to maintain lists of objects based on selection or deselection, it is better to handle it in Rhino.Idle handler. For example,

   private void OnIdle(object sender, EventArgs e)
   {
      //For example you want to get the list of all selected curves
      var selectedCurveObjects = RhinoDoc.ActiveDoc.Objects.GetObjectsByType<RhinoObject>(new ObjectEnumeratorSettings() { ObjectTypeFilter = ObjectType.Curve, SelectedObjectsFilter = true }).ToList();
      //Update your lists 
   }
1 Like
3

Hi @Darryl_Menezes,

It is good to know this way for me, thanks for your help. I tried your way, but event works like infinite loop, do you estimate why possibly it is happening?

4

Well, the event is fired everytime Rhino is Idle, so basically almost all the time. But this shouldnt be an issue as long as you get your lists right.

5

@Darryl_Menezes,

I can manage list easliy with this way now. It is really better instead of using below events;

RhinoDoc.SelectObjects += RhinoDoc_OnSelectObjects;
RhinoDoc.DeselectAllObjects += RhinoDoc_DeselectAllObjects;

Appropriate for your help, you saved my many time,
Although still I don’t know why Selection and Deselection events were triggering twice, this Idle event solved my problem.

Thanks
-Oğuzhan