topic Overview map does not show contents until after view extent changed in ArcGIS API for Silverlight Questions

Overview map does not show contents until after view extent changed

StephenLead — Tue, 10 Aug 2010 08:09:56 GMT

Re: the sample at http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#OverviewMap

Switch to the XAML page then the Live Sample page, and note that the overview map initially does not draw. You need to pan/zoom the map before the overview map initialises.

This also happens when I compile and run this code locally. Any ideas why the overview map doesn't show immediately?

Thanks,
Steve

Re: Overview map does not show contents until after view extent changed

JenniferNery — Thu, 12 Aug 2010 04:54:03 GMT

Thank you for reporting this. We are looking into it.

Jennifer

Re: Overview map does not show contents until after view extent changed

PaulHuppé — Tue, 07 Sep 2010 12:13:16 GMT

Hi,

I switched my overview map from using a ArcGISTiledMapServiceLayer as in the sample to a ArcGISDynamicMapServiceLayer, and the overview map simply never shows! All I get is an empty grey box. Does the overview map support a ArcGISDynamicMapServiceLayer?

Paul

Re: Overview map does not show contents until after view extent changed

DominiqueBroux — Tue, 07 Sep 2010 12:47:22 GMT

The overview map works whatever the layer provided that the spatial reference be the same than the main map.

Re: Overview map does not show contents until after view extent changed

PaulHuppé — Tue, 07 Sep 2010 12:55:28 GMT

I think that was the clue I needed. I removed the MaximumExtent="-180,-90,180,90" from the Overviewmap control definition, and it now works fine.

Thanks,
Paul

Re: Overview map does not show contents until after view extent changed

NeilDuxbury — Mon, 20 Sep 2010 19:45:14 GMT

The overview map works whatever the layer provided that the spatial reference be the same than the main map.

Are there any plans to allow the spatial reference of the overview map to be set in the same way as the regular map control?

Currently it appears that there is no way to change the spatial reference of the overview map control after it has been created or to explicitly set the spatial reference.

It would be helpful if setting the MaximumExtent property when the Layer property is null would cause the spatial reference to be set on the overview map.

Thanks,
Neil

Re: Overview map does not show contents until after view extent changed

JenniferNery — Mon, 18 Oct 2010 13:41:08 GMT

Re: the sample at http://help.arcgis.com/en/webapi/sil...tm#OverviewMap

Switch to the XAML page then the Live Sample page, and note that the overview map initially does not draw. You need to pan/zoom the map before the overview map initialises.

This also happens when I compile and run this code locally. Any ideas why the overview map doesn't show immediately?

This will be fixed in the next release.