topic Re : Problem: How to remove Lines (or other entities) from a selection set? in .NET Forum

Problem: How to remove Lines (or other entities) from a selection set?

BKSpurgeon — Sat, 16 May 2015 04:10:39 GMT

Couldn't readily discern any methods within the selectionSet class which readily allows one to add and remove items. The current methods within the class are (CopyTo, FromObjectIds, GetEnumerator, GetObjectIds, ToString) - none to add or remove items. My preference is to work with the existing selection set rather than to create a new one.

Is there any way of removing Lines from a given selection set?

Your assistance is greatly appreciated.

Re : Problem: How to remove Lines (or other entities) from a selection set?

_gile — Sat, 16 May 2015 06:45:12 GMT

Hi,

AFAIK you cannot change the content of a selection set after the selection ends.

During the selection, you can handle the SelectionAdded event to filter as shown in this thread.

But it seems to me, it would be much more simple to convert the selection set into an ObjectIdCollection (or a List<Entity>) to make the changes to the collection, and if you finally really need a SelectionSet object, rebuild one using the SelectionSet.FromObjectIds() method.

Re : Problem: How to remove Lines (or other entities) from a selection set?

BKSpurgeon — Sat, 16 May 2015 13:36:23 GMT

Thank you sir, this helps immensely.

I was considering doing exactly as you suggested, but this would involve rewriting of some code, which I am lothe to do.

regards