Can below code be optimized further or written without load()? =load(

Load is needed when any local variables are instantiated on the first rendering of the SAIL interface.
See:
forum.appian.com/.../SAIL_Design.html
under the section on the load() function.

The value and saveInto objects need to be multiple for the checkboxField.
See:
forum.appian.com/.../SAIL_Components.html
where the value and saveInto parameters explicitly detail then need to be able to save multiple values.

You should implement a radioButtonField for a field where only one choice is valid to be saved.
forum.appian.com/.../SAIL_Components.html

Hi Chase,
Thanks for replying. I'm aware of all three points which are pretty valid. In my scenario the field I need to save into is not a multival but a singleval text type and I need to save/read multiple values in/from it. Hence the above workaround.

Below is the alternative code (which I prefer) but it fails with an error. Hence thought I would ask in here if anyone had done similar thing before.

a!checkboxField(
label: "Sample Checkbox",
choiceLabels: {"a1","b2"},
choiceValues: {"a1","b2"},
value: if(rule!APN_isBlank(ri!savedValue), {}, split(ri!savedValue, ";")),
saveInto: ri!savedValue
)
)

Try this:-

a!checkboxField(
label: "Sample Checkbox",
choiceLabels: {"a1","b2"},
choiceValues: {"a1","b2"},
value: if(rule!APN_isBlank(ri!savedValue), {}, apply(fn!trim,split(ri!savedValue, ";"))),
saveInto: ri!savedValue
)

Cool, thank you. trim() is what I was missing as there is a space added in between the array elements along with the ";".