topic Query.Outfields - reading aliases from the Map document in ArcGIS JavaScript Maps SDK Questions

Query.Outfields - reading aliases from the Map document

StephenLead — Tue, 07 Sep 2010 06:20:26 GMT

The Query help page at http://help.arcgis.com/EN/webapi/javascript/arcgis/help/jsapi_start.htm#jsapi/query.htm says:

"Outfields - You must list the actual field names rather than the alias names... However, you are able to use the alias names when you display the results. You can set field alias names in the map document"

All of the samples use hard-coded alias names, eg:

infoTemplate.setContent("<b>2000 Population: </b>${POP2000}<br/>"

Does anyone know the syntax to retrieve the field alias programatically from the ArcGIS Server services endpoint?

ie, rather than hard-coding 2000 Population, how could you retrieve it from the ${POP2000} parameter? I'm trying to write a generic query function which can be used by multiple layers, with different schemas.

Thanks,
Steve

Re: Query.Outfields - reading aliases from the Map document

derekswingley1 — Tue, 07 Sep 2010 16:41:39 GMT

Check out this thread: http://forums.arcgis.com/threads/7793-Identify-How-to-show-Alias-filed-instead-of-Field-Name?p=26145

Re: Query.Outfields - reading aliases from the Map document

StephenLead — Thu, 09 Sep 2010 01:04:03 GMT

Thanks for the info Derek.

I actually found an easier way - the QueryTask.Execute method returns a FeatureSet, which returns the fieldAliases.

http://help.arcgis.com/EN/webapi/javascript/arcgis/help/jsapi_start.htm#jsapi/featureset.htm#fieldAliases

Cheers,
Steve

Re: Query.Outfields - reading aliases from the Map document

derekswingley1 — Thu, 09 Sep 2010 16:49:52 GMT

Nice, not sure how I missed that previously...