default value

Question

in dropdown i have to show default values then it has only single value if dropdown has multiple choices i can show then value will be null 
 ex: here detail has many values this i have to show as it is no change in this 
 this dropdown has single option so need to show that by default

nilanshum810650 · Answer

You can check the length of the options and then use them in the value parameter if its 1. Here's the code for your reference: a!localVariables(
 local!options: {"a"},
 local!selectedValue: if(
 length({local!options}) = 1,
 local!options,
 null
 ),
 {
 a!dropdownField(
 label: "dropdown",
 choiceLabels: local!options,
 choiceValues: local!options,
 placeholder: "--select a value--",
 value: local!selectedValue,
 saveInto: local!selectedValue
 )
 }
) 
 Let me know if you need any other support.