Rendering FeatureLayer based on pre-defined symbology?

[StephenLead]

The sample at http://resources.esri.com/help/9.3/arcgisserver/apis/silverlight/samples/start.htm#FeatureLayerRende... shows how to add a FeatureLayer to the map.

This sample hard-codes the symbology - but is it possible to access the symbology (and other properties) which were defined in ArcMap, then published to ArcGIS Server?

Eg my services catalog shows a layer with properties like:

Min. Scale: 100000
Drawing Info:
Renderer: Simple Renderer:
Symbol: Picture Marker Symbol:

Can I use these programatically, without having to hard-code them?

Thanks,
Steve

[JenniferNery]

I believe the sample was written to show how you can define a renderer using the API. If your FeatureLayer already has a renderer, you do not need to overwrite it.

Jennifer

[StephenLead]

Hi Jennifer,

Thanks for the info. I don't have access to an ArcGIS Server 9.3.1 machine to test this - I'm running ArcGIS Server 10, which apparently doesn't connect with the version of Silverlight/Visual Studio that I'm using.

I'm hoping to upgrade shortly - but in the meanwhile, can you point me at a sample ArcGIS Server 9.3.1 service which has the symbology already set?

As far as I can see, all of the services under http://serverapps.esri.com/ArcGIS/rest/services are either Tiled, or don't have symbology (unless I'm missing something).

Thanks again,
Steve

[JenniferNery]

Oh you are right, the Renderer is new to ArcGIS 10.

I was going to point you to this http://sampleserver3.arcgisonline.com/ArcGIS/rest/services Notice that there is a "DrawingInfo" section that defines the renderer.

This is the only ArcGIS 9.3.1 that I know about
http://sampleserver1.arcgisonline.com/ArcGIS/rest/services

Jennifer

[StephenLead]

Oh you are right, the Renderer is new to ArcGIS 10.

Cool, I'll upgrade my VS and SL toolkit and try again using AGS 10.

thanks for the help,
Steve

[linusang]

Hi,

Where can i find the information for this ArcGIS 10 renderer?

Does it mean that the FeatureLayer will use the symbol it uses in ArcMap?

[JenniferNery]

Does it mean that the FeatureLayer will use the symbol it uses in ArcMap?

Yes, if the rest endpoint created by your published service contains a renderer, this will be picked up by the SL/WPF API.  For example: http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/BloomfieldHillsMichigan/LandusePlanning/F... This FeatureLayer includes a Unique Value Renderer (see Drawing Info).

For more information on what is new to the ArcGIS 10 Rest API, you can visit this link:http://help.arcgis.com/EN/arcgisserver/10.0/apis/rest/index.html

Jennifer