topic Creating M-N Relationships in ArcGIS API for Silverlight Questions

Creating M-N Relationships

rbae — Tue, 25 Oct 2011 14:52:01 GMT

I have 2 tables exposed through a Feature Service tha has a M-N relationship. Assuming that I have a Graphic object from each table, is it possible to create a relationship between the two?

Thanks for your help!

-Ryan

Re: Creating M-N Relationships

JenniferNery — Mon, 31 Oct 2011 13:33:54 GMT

You can look at this SDK sample: http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#QueryRelatedRecords. This forum thread might also be relevant: http://forums.arcgis.com/threads/14626-Please-help-with-ExecuteRelationshipQueryAsync

Re: Creating M-N Relationships

rbae — Mon, 07 Nov 2011 16:58:24 GMT

Hi Jennifer,

If I understand these posts correctly, they are for reading/querying relationship classes and not actually creating relationships?

Please let me know if I'm missing something.

Thanks,

-Ryan

Re: Creating M-N Relationships

JenniferNery — Mon, 07 Nov 2011 18:39:36 GMT

Your tables can be represented as FeatureLayer, where Graphic.Attributes represent the row in the table. This feature service for example are related by an attribute "sf_311_serviceoid" (i.e. "2547813"): http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/SanFrancisco/311Incidents/FeatureServer. To relate graphics then, you can update their attribute value. But you need to know which attribute connects the two tables.