topic Re: GeometryEditor FeedbackLine access in .NET Maps SDK Questions

GeometryEditor FeedbackLine access

DmitriyKolokolnikov — Fri, 27 Sep 2024 07:43:41 GMT

Can I access the FeedbackLine when dragging a node in the GeometryEditor to display, for example, the current polyline length during the drag? Thanks

Re: GeometryEditor FeedbackLine access

GKmieliauskas — Fri, 27 Sep 2024 10:15:36 GMT

Hi,

I think link to another thread could be helpful for you:

Solved: Add GeometryChanged event to the new GeometryEdito... - Esri Community

Re: GeometryEditor FeedbackLine access

DmitriyKolokolnikov — Fri, 27 Sep 2024 13:33:56 GMT

Thank you for the quick response. Unfortunately, this is not quite what I need. I need to obtain the geometry during the process of dragging a vertex. It seems that currently it’s only possible to get the geometry at the end of the dragging, i.e., after releasing the mouse.

Re: GeometryEditor FeedbackLine access

GKmieliauskas — Fri, 27 Sep 2024 14:15:06 GMT

Have you read blog about migrating from SketchEditor -> GeometryEditor inside the thread I mentioned above. Look at the part "Asynchronous start task with geometry result"

Re: GeometryEditor FeedbackLine access

DmitriyKolokolnikov — Fri, 27 Sep 2024 14:57:48 GMT

Yes, I have read that. I can get the geometry, but only after the node dragging is complete. However, I need to get it during the dragging.

Re: GeometryEditor FeedbackLine access

GKmieliauskas — Fri, 27 Sep 2024 18:37:27 GMT

If you need to get it during dragging you need to listen for PropertyChanged event as in sample from thread:

mapView.GeometryEditor.PropertyChanged += (s, e) => { if (e.PropertyName == nameof(mapView.GeometryEditor.Geometry)) { // Geometry has changed } };

Re: GeometryEditor FeedbackLine access

DmitriyKolokolnikov — Sat, 28 Sep 2024 05:47:54 GMT

The PropertyChanged for the GeometryEditor.Geometry property is triggered only after the vertex dragging is completed, i.e., after the mouse button is released.

Re: GeometryEditor FeedbackLine access

HamishDuff — Mon, 30 Sep 2024 14:30:58 GMT

Hi @DmitriyKolokolnikov,

Thank you for your question. Currently you cannot access the FeedbackLine length during a drag action, as you've mentioned it is only possible to retrieve the length after a subsequent vertex has been placed.

I'll make a note of this as a potential enhancement.

Re: GeometryEditor FeedbackLine access

Mike_Quetel — Tue, 01 Oct 2024 15:39:41 GMT

I'd like to register support for this as an enhancement. It sounds like OP and I have similar use cases where we would like to provide continuous feedback (length, area, etc.) about the interim geometry before a vertex is actually placed by the user.

Re: GeometryEditor FeedbackLine access

FelicityRhone — Mon, 04 May 2026 21:36:07 GMT

I also have a use case where getting the geometry of the feedback line would be useful. I guess I can calculate it myself from the mouse position to the current selected vertex, but it would be handy if it was more accessible somehow. I want to show the user a label with the length of the feedback line displayed as they're drawing. Any update on this as a feature enhancement request, i.e. is the request tracked somewhere?