Hello,

I am relatively new to LF. I would like to be able to show an alert/error message if a user chooses the same value more than once from a drop-down list. The drop-down list is generated dynamically depending on the user's employee ID as entered into the form. The user can choose up to five values from the list, so a duplication could happen at any of the five points. I'm thinking that this would need to be done via a javascript that looks at matching strings?

Here is an example from a form:

Here is the current code (though missing the 5th date choice):

Thank you for your help.