Using Reverse Geocode in a workflow (Workflow 4)

John Nerge

2. Dezember 2021 20:47

I'm trying to use the Reverse Geocode activity to have a user right-click on the map, run the reverse geocode, and then load the address components into a Display Form. I've got the Reverse Geocode running fine, but the output is a ESRI.ArcGIS.Client.Tasks.Address. Any idea how I can extract the address from that data type to use as a string?

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  Nico Burgerhart

  2. Dezember 2021 21:51

  Use the Attributes property, this returns a dictionary with name/value pairs.

  See https://help.arcgis.com/en/webapi/wpf/apiref/ESRI.ArcGIS.Client~ESRI.ArcGIS.Client.Tasks.Address~Attributes.html

  The following will return a comma separated list of address attribute names or values.

  string.Join(",",address.Attributes.Keys) string.Join(",",address.Attributes.Values)

  This will return the value of the City attribute.

  address.Attributes("City").ToString

  I guess the attribute names are dependent on the used geocode service.

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  John Nerge

  2. Dezember 2021 22:01

  So I plugged string.Join(",",address.Attributes.Keys) into an alert, and it runs, but it doesn't return any values (blank). Do I need to specify the Keys somewhere in GE?

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  Nico Burgerhart

  3. Dezember 2021 07:36

  No, I guess there is something wrong with the (configuration of) the geocode service or Reverse Geocode activity, or it cannot find an address. Does the Location property return a value?

  address.Location.ToString

   

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  John Nerge

  3. Dezember 2021 14:31

  Nope, just returns the ol' "Object reference not set to an instance of an object" error. It does return an address in the context menu though.

   

  

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  John Nerge

  3. Dezember 2021 14:34

  I get the same error using the ArcGIS World Geocoder too.

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  John Nerge

  3. Dezember 2021 20:56

  Sigh, okay, it was user error. I was reading too fast and thought the the Geocode Service URL parameter in the ReverseGeocode activity said Geometry Service URL. When I use an actual, ya know, geocode service, it works!

   

  Thanks for all the help, Nico. I don't know if we've ever put it up to a vote, but if so you have mine for king of the forums.

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