How to display data dynamically based on previous selected data

Update the States drop-down choiceLabels / choiceValues array in Country drop-down saveInto. Set showWhen for States dropdown to display if a values is selected in Country

Please refer for example : community.appian.com/.../cascade-dropdown

Hi Priya,

I tried but i can use this only when i have two lists in first dropdown. But i have more than 2. In this way it is not allowing more than one IF condition.

Hi Priya,

I tried but i can use this only when i have two lists in first dropdown. But i have more than 2. In this way it is not allowing more than one IF condition.

In this case, you have to maintain States constant for each country. Based on selected country, you have to map the corresponding States constant to the variable of choiceLabels/ChoiceValues in Country dropdown SaveInto

I suggest you to go for a table option if you are having many Countries

Yes agree,
Its possible with 2 but because you have a trimmed down second dropDown it will be though to do.

If its only 2 you can have

1 constant with countires
1 with states

STATE_CONSTANT[value of country constant]

Please check the example

load(
  local!countryLabelConstant:{"IND","USA","UK"},
  local!countryValuesConstant:{1,2,3},
  local!indStatesConstant:{"TN","AP"},
  local!usaStatesConstant:{"AL","AK"},
  local!ukStatesConstant:{"JK","JL"},
  local!states,
  local!selectedCountry,
  local!selectedState,
  {
    a!dropdownField(
      label: "Country",
      placeholderLabel: "Please select",
      choiceLabels: local!countryLabelConstant,
      choiceValues: local!countryValuesConstant,
      value: local!selectedCountry,
      saveInto: {
        local!selectedCountry,
        a!save(
          local!selectedState,
          NULL
        ),
        a!save(
          local!states,
          choose(
            save!value,
            local!indStatesConstant,
            local!usaStatesConstant,
            local!ukStatesConstant
          )
        )
      }
    ),
    a!dropdownField(
      showWhen: not(
        rule!APN_isBlank(
          local!selectedCountry
        )
      ),
      label: "States",
      placeholderLabel: "Please select",
      choiceLabels: local!states,
      choiceValues: local!states,
      value: local!selectedState,
      saveInto: local!selectedState
    )
  }
)