Dynamic Select List Allowed Values
Howdy Folks,
I am trying to allow end users to select their username. The usernames are generated from a rule library, and displayed in a select form element. I am doing this by having the allowedValues call the rule that generates the possible names directly. The rule returns a list of valid names. The problem I am currently having, is that if the page reloads or refreshes, then the allowedValues calls the rule again. Some of the username choices involve random numbers, so it is possible (and very likely), that separate calls to the rule will generate different potential values. So what is now happening, is that when a user selects the value, the page reloads, and the end user sees an error that looks like this:
( ) - Warning: Selected value for field 'Select a Valid User Name' does not match any of the allowed values.
The reason I am reloading the page, is that I am also trying to show the user what their email address will look like with the new value. So I have a different form element that is loading is value dynamically, and referencing the select form element. This mostly works, but the warning above is unacceptable.
Is there a way I can load the dynamically created list only once, the first time the form is viewed, and not load it again every time the page refreshes?
Another thing I tried to do (but didn't have luck with, so I sorta gave up on it) was to use the onChange of the select to change the value of email display field. This way the page never reloads and I don't have to deal with that issue. I'm thinking the onChange might actually work, but I would need to execute javascript or something, and not just use an express <set/> command to set the value of the field name that displays the email text.
Does anyone have advice on how to make the values only load once? Or how to change the value on the onChange event?
Thanks!
Jim
