I have a scenario, where there are 2 dropdown fields namely "Region" and "Country"
Choice Labels and Choice Values for "Region" dropdown field is referred to a constant (cons!LCV1_REG) and it has an array of values - Asia, Europe, Australia
Choice Labels and Choice Values for "Country" dropdown field is referred to a constant (cons!LCV!_COUN) and it has an array of values - Japan, India, Sri Lanka, Russia, Germany France, New Zealand, Samoa, Tonga
I created a decision rule (rule!LCV1_decidet) where my Region - Asia is equal to Country - Japan, India, Sri Lanka and my Region - Europe is equal to Country - Russia, Germany, France and my Region - Australia is equal to Country - New Zealand, Tonga, Samoa
I created an interface for the same.
So lets say I have selected Region = Asia and I get a list of Countries = Japan, India, Sri Lanka. Now if I suddenly go and select another Region, it gives me an error saying that the Country value was not found.
I want my Country dropdown field to reset every time I select a Region, irrespective of a Country selected before.
I have attached the code below for the interface,
a!localVariables( local!region: cons!LCV1_REG, local!country: rule!LCV1_decide(region: ri!region), { a!columnsLayout( columns: { a!columnLayout( contents: { a!dropdownField( label: "Regions", labelPosition: "ABOVE", placeholder: "--- Select a Value ---", choiceLabels: local!region, choiceValues: local!region, value: ri!region, saveInto: ri!region, searchDisplay: "AUTO", validations: {} ) } ), a!columnLayout( contents: { a!dropdownField( label: "Countries", labelPosition: "ABOVE", placeholder: "--- Select a Value ---", choiceLabels: local!country, choiceValues: local!country, value: ri!country, saveInto: ri!country, searchDisplay: "AUTO", disabled: isnull(ri!region), validations: {} ) } ) } ) } )
The below screenshot is of the decision rule
Can someone help me in this scenario?
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It looks like you found the answer, but I also wanted to share a similar recipe in the docs: https://docs.appian.com/suite/help/latest/recipe-configure-cascading-dropdowns.html. There's some really nice recipes there that have code you can copy / paste if you want to try some common design patterns.
That helps as well. I am open to all kinds of solutions from the members of this community. Thank you Peter !!!