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I have built a model, as input parameter I have a 2 parameters: a Feature Layer and a Field But when I run the model, the Field-Parameter has no values to select. How can I tell the model builder, that I want the Fields from the selected Feature Layer as values in the Field parameter?

  • I would look into tool validation. I think you can use this with tools authored using ModelBuilder and not just Python script tools but I am happy to be corrected. Actually I think it is an Obtained from option when you are setting Parameters on the Model Properties but tool validation is useful to know about. – PolyGeo Nov 18 '14 at 11:49
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Sounds like you want to derive a field from a layer, this can only be done in a script tool, it is discussed here. You will need to convert the logic of the model into python code.

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