I am trying cascading dropdown with query rules. I have this SAIL expression but

Hi, you are right and now it works! My code is the following ("foods" is multiple, "choiceFoodType" and "fruitChoice" are single variables):
= a!formLayout(
label: "SAIL Example: Cascading Dropdowns",
firstColumnContents: {
a!dropdownField(
label: "Food Type",
choiceLabels: ri!foods,
choiceValues: ri!foods,
placeholderLabel: "--- Select Food Type ---",
value: ri!choiceFoodType,
saveInto: ri!choiceFoodType
),
if(
ri!choiceFoodType = "",
{},
a!dropdownField(
label: "Fruits",
choiceLabels: rule!getFailureDescription(
ri!choiceFoodType
),
choiceValues: rule!getFailureDescription(
ri!choiceFoodType
),
placeholderLabel: "--- Select Fruit Type ---",
value: ri!fruitChoice,
saveInto: ri!fruitChoice
)
)
},
buttons: a!buttonLayout(
primaryButtons: a!buttonWidgetSubmit(
label: "Submit"
)
)
)
One strange behavior I notice is the following: I choose in 1st dropdown one value (ex. "Fruits"), in the 2nd I have filtered values (ex."Banana","Orange"). I select "Orange" and then I come back to the 1st dropdown and I change to another value (ex. "Vegetables"). It show a message "The Requested Task Is Not Available
The task may have been deleted or completed by another assignee.", but noone has taken the task because I am the only one in my test environment: maybe is it an error in my code? Thanks again!

Hi, you are right and now it works! My code is the following ("foods" is multiple, "choiceFoodType" and "fruitChoice" are single variables):
= a!formLayout(
label: "SAIL Example: Cascading Dropdowns",
firstColumnContents: {
a!dropdownField(
label: "Food Type",
choiceLabels: ri!foods,
choiceValues: ri!foods,
placeholderLabel: "--- Select Food Type ---",
value: ri!choiceFoodType,
saveInto: ri!choiceFoodType
),
if(
ri!choiceFoodType = "",
{},
a!dropdownField(
label: "Fruits",
choiceLabels: rule!getFailureDescription(
ri!choiceFoodType
),
choiceValues: rule!getFailureDescription(
ri!choiceFoodType
),
placeholderLabel: "--- Select Fruit Type ---",
value: ri!fruitChoice,
saveInto: ri!fruitChoice
)
)
},
buttons: a!buttonLayout(
primaryButtons: a!buttonWidgetSubmit(
label: "Submit"
)
)
)
One strange behavior I notice is the following: I choose in 1st dropdown one value (ex. "Fruits"), in the 2nd I have filtered values (ex."Banana","Orange"). I select "Orange" and then I come back to the 1st dropdown and I change to another value (ex. "Vegetables"). It show a message "The Requested Task Is Not Available
The task may have been deleted or completed by another assignee.", but noone has taken the task because I am the only one in my test environment: maybe is it an error in my code? Thanks again!