private static void SymbolLookup(FeatureLayer featureLayer)
{
#region Lookup Symbol
//Note: Run within QueuedTask.Run
//Get the selection
var selection = featureLayer.GetSelection();
//Get the first Object ID
var firstOID = selection.GetObjectIDs().FirstOrDefault();
//Determine whether the layer's renderer type supports symbol lookup.
if (featureLayer.CanLookupSymbol())
{
//Looks up the symbol for the corresponding feature identified by the object id.
var symbol = featureLayer.LookupSymbol(firstOID, MapView.Active);
var jSon = symbol.ToJson(); //Create a JSON encoding of the symbol
//Do something with symbol
}
#endregion
}