topic Re: How to set Geoprocessing field_mapping parameter in SDK in ArcGIS Pro SDK Questions

How to set Geoprocessing field_mapping parameter in SDK

GwenRoyakkers — Mon, 13 Nov 2017 10:27:29 GMT

Is it possible to set the fieldmappings parameter for spatial-join (or another geoprocessor) from the sdk?

In Arcobjects you would use the IGPFieldMapping object and in Python the arcpy.FieldMappings object.

I Only want/need 1 field from join_features.

I can't find anything about this topic in the SDK documentation, and the community samples only use simple string based parameters.

Is there a renamed object that I'm missing, or is this functionality missing from ArcGIS Pro .Net SDK?

Removing/renaming the unused fields afterwards is not an acceptable workaround (There are way to many fields for this, and removing a field from the Geoprocessing framework is a lot slower than ArcObjects).

Thanks!

Re: How to set Geoprocessing field_mapping parameter in SDK

GwenRoyakkers — Tue, 14 Nov 2017 10:31:49 GMT

As a workaround I build a function that wil convert a list of my own FieldMapping Classes to a correct formatted string for the Geo processing parameter.

The parameters from the geo processing history gave me a clue on how to format the field mappings to text myself.

A decent ESRI solution would be preferable though. Because building the text on your own leaves room for errors, and you need to know the fields of both feature classes.

Re: How to set Geoprocessing field_mapping parameter in SDK

ole1986 — Fri, 30 Jul 2021 06:13:04 GMT

@GwenRoyakkers Any chance to get an example code on how you have resolved it?