topic ViewpointChanged event raised multiple time in .NET Maps SDK Questions

ViewpointChanged event raised multiple time

PrashantKirpan — Mon, 18 May 2020 03:34:30 GMT

Hi All,

I've subscribed ViewpointChanged event and running some code whenever map extent changes or zoom in/out.

I observed that whenever I interact with map e.g. zoom in/out event get fired multiple times(3-4) and along with that code executes and slow down the performance.

How can I prevent event execution multiple times or just capture the last instance?

Version: WPF 100.8

Any help would be appreciated.

Regards,

Prashant

Re: ViewpointChanged event raised multiple time

dotMorten_esri — Mon, 18 May 2020 06:48:54 GMT

As you're zooming or panning, the viewpoint is changing and therefore the event is firing. You don't want to run a bunch of heavy operations in that event.

If you need to run some more expensive code, I'd recommend you use the NavigationCompleted event, which is more meant for that sort of thing.

Re: ViewpointChanged event raised multiple time

PrashantKirpan — Mon, 18 May 2020 07:36:44 GMT

Thanks Morten for reply. It's working !!!