topic LayerDef Extent in ArcGIS API for Silverlight Questions

LayerDef Extent

KeithNightlinger — Wed, 06 Oct 2010 15:40:46 GMT

I have a dynamic map service with three layers that I am applying a Layer Definition to in code behind based on user input. After the data is filtered (which is working) I want to pan/zoom to the extent of the visible features.

using Map.ZoomTo(dmsLayer.FullExtent); takes to the extent of the dynamic map service, not the visible features, nor is there a updated handler for a dynamic map service to try and call after the layer def is completed.

What would be the best way to accomplish this?

Thanks,
Keith

Re: LayerDef Extent

DominiqueBroux — Thu, 07 Oct 2010 06:44:55 GMT

using Map.ZoomTo(dmsLayer.FullExtent); takes to the extent of the dynamic map service, not the visible features,

There is no way with the REST API and so with the SL API to get a layer extent taking in care the layer definition.

is there a updated handler for a dynamic map service to try and call after the layer def is completed

No, because the request with a layer def is stateless. It's only used for one exportmap operation.

What would be the best way to accomplish this?

A GP tool or a Server Object Extension (SOE) should be able to accomplish this.