EditOperation Automaticly started with Event "OnDeleteFeature"?

LionelMartz

Hello everyone again,

I've just a little question to make sure, that everything doesn't work just by a fluke.
I'm handling the Events "OnVertexAdded" and "OnDeleteFeature".

In my OnDeleteFeature-handling it can be, that the delete-Operation is invalid. In this case, I call the editor.AbortOperation-method. That works fine. Does that mean, the ArcGIS is starting itself an edit operation? I Think this, because I also can't start an edit Operation in this event-handling without getting an Error. In contrast to the OnVertexAdded-event, where it is possible to start an Edit Operation.

In the API there is written, that the user must start an stop Operations while he's editing within an editor editing session.

So, it's a bit confusing for me..


Thanks for the answers!

Lionel

AlexanderGray

the code is a little scattered but I do this in an extension in vb.net, principle is the same for c#

class level member variable:
  Private m_PointObjectClassEvents As IObjectClassEvents_Event

In a method called on start editing, if the featureclass is found
'LayerPoint previousle obtained
m_PointObjectClassEvents = DirectCast(m_LayerPoint.FeatureClass, IObjectClassEvents_Event)
AddHandler m_PointObjectClassEvents.OnChange, AddressOf PointChange

Private Sub PointChange(ByVal obj As IObject)
     'Maybe check some conditions
     Throw New ApplicationException("Message to the user")  'this abort the edit and the exception
      'message is shown to the user
  End Sub

In a stop editing event or other appropriate event
RemoveHandler m_PointObjectClassEvents.OnDelete, AddressOf PointChange