Generating a choice list for a parameter automatically

RobertKnapik — Wed, 21 Aug 2019 07:23:11 GMT

Hello,

I would like to create a python script tool with three parameters. Choice list for a parameter should be genereted automatically (like here: Generating a choice list from a field) but depending on the selection from the list.

For example, if for first parameter we select from automatic list the value "12", the automatic list for second parameter should be filtered to value "100", "200" and then If we select "100", the list for third parameter should be filtered to "1000","2000", "3000" etc.

Column 1 (parameter 1)

Column 2 (parameter 2)

Column 3 (parameter 3)

100

1000

100

2000

100

3000

200

4000

400

1000

400

2000

300

1000

Do you have any idea how to modify the validation code from here: Generating a choice list from a field?

Thanks,

Robert

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Generating a choice list for a parameter automatically