Need knowledge on drop down cascading

Hi ,

I have two Drop downs. I want to Select another Drop down value based on selection in different drop down.

First DD will have choice label:("dev","engg","it") and choice value:(1,2,3)

Second DD choice Label:  ("DevEnv","TestEnv","ProdEnv","Dev2","Dev3"), choice value :(1,2,3,4,5)

Could someone help in giving me a easy solution. I am learning Appian.

Thanks

Faisal

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  • When I am running this whole code under this doc the error I am getting.Could you please help:

    Error:Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error at function a!dropdownField [line 23]: A dropdown component [label=“Department”] has an invalid value for “value”. Value cannot be null if placeholder is also null.

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