I would like to allow user to dinamically change an ArcGis Server Map Service. Specifically I would like to remotelly add a new rule to an existing layer. The simbology should be get from some sort of inventory (may be from another Map service with a catalog of symbols, or in some other way). Is it possible with Silverlight API (or in any other way)?... Any suggestions?...
What you can do from Silverlight is to set a custom renderer for the layer. If you want to persist it, you'll have to serialize it and store it in a different table. If you want to modify the MXD directly, you'll probably have to write up a Python script and publish it as a Geoprocessing service. Changing symbology in the query is expected to come with ArcGIS Server 10.1.
