Attribute Query on Muitiple fields

ChristineZeller — Thu, 28 Oct 2010 17:45:05 GMT

Attribute Query on Multiple fields

Hello all,
I was wondering if there is an example of attribute query on multiple fields or if someone could help me construct the schema. Basically, I???m building a project where my end users want to query one layer but multiple fields (a police calls for service dispatch point layer).
They are interested in asking 3 basic questions:

What kind of Calls/Crimes are you looking for (The layer has a Calls for service/Crimes type fields)?
Where are you interested in (the layer has a beat/sector field)?
When (there are date /time fields) and I would like to provide a date/time calendar picker.

All the same layer???..3 fields are queried and then results are shown on the map and in a table grid.

Thanks
Christine Zeller

Re: Attribute Query on Muitiple fields

JenniferNery — Fri, 29 Oct 2010 02:03:49 GMT

You can use Where property of the Query http://help.arcgis.com/en/webapi/silverlight/apiref/ESRI.ArcGIS.Client~ESRI.ArcGIS.Client.Tasks.Query~Where.html

In this feature service, I'm able to perform query on any number of fields:
http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/HomelandSecurity/operations/FeatureServer/2
Where = ftype <> 10501 and fcode <> 10501 and objectid > 9155

The FeatureLayer.LayerInfo.Fields have the following members http://help.arcgis.com/en/webapi/silverlight/apiref/ESRI.ArcGIS.Client~ESRI.ArcGIS.Client.Field_members.html, the field's type will help you determine how you choose what control to use (i.e. DateTimePicker).

topic Attribute Query on Muitiple fields in ArcGIS API for Silverlight Questions

Attribute Query on Muitiple fields

Re: Attribute Query on Muitiple fields