Hi there, I'm suing the Advanced Forms API Plugin. In a form, I&

jdegraaf over 10 years ago

Hi there,

I'm suing the Advanced Forms API Plugin. In a form, I'm displaying a dynamic dropdown using the populateDropdown function. The data i'm displaying (and the corresponding values) is of type 'text'.
My problem is that on load of the form, the dropdown always displays the top level item, and is refusing to use the default item that I'm telling the field to use.
For example: if the default item for the field is third in the list of items that the dropdown displays, it will still by default display the first item, even though the third item seems to be available in the dropdown.

Is using a default value in combination with the populateDropdown function possible? If so, would you be able to let me know how you're doing it?

Thanks!...

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0 jdegraaf over 10 years ago

Of course, when I say 'I'm suing the Advanced Forms API Plugin', I obviously mean 'I'm using...'.
I will only sue them if I can't get this to work ;-)
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0 Eduardo Fuentes
Appian Employee
over 10 years ago

Looking at the FormExt.js I can see the default value you select in Appian is lost when the dropdown is reloaded with the new values.

This basically happens because the default value is not stored anywhere I guess to simplify the functionality, therefore in FormAPI.updateDropdownValues() the code simply sets it to the first item in the dropdown:

var choices = {
entries : [],
selected : [ 0 ]
};
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0 Eduardo Fuentes
Appian Employee
over 10 years ago

You could add an additional argument (numeric) to the populateDropdown() function and keep passing it until it reaches FormAPI.updateDropdownValues() and assign that index to the "selected" attribute of the "choices" variable.

Just remember that this will require you to replace the JS file that comes inside the Advanced Form Utilities JAR and that you should document that as a new version for it to be deployed in other environments and avoid inconsistent behavior.
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