Displaying unique value in dropdown

Question

I have 2 dropdowns type and courses type will be premium, free and courses for premium java, c++, and also for free also I have java , python like this . i need to display all the courses when in default and when type selected as premium it will only show that category courses. but java is in both category it displaying 2 times by default . In db they have mapped with thier unique type ids only. I tried with union but choice values and choice values length varies because of that. Can anyone help me ?

Vyshnavi Naripeddi · Answer

Hi iswarya2812 
 a!dropdownField should have unique choice values, I would suggest you to show the course type first and then showing courses based on the selected course type or else you can also use a!dropdownFieldByIndex 
 Refer to : https://docs.appian.com/suite/help/24.2/Dropdown_By_Index_Component.html

Mike Schmitt · Answer

If both "java" entries have single, unique type IDs, does that imply that the two different "Java" offerings are actually different (as in, it sounds like there are 2 separate entries in your DB)? In that case maybe you should consider changing the label for one of them to be distinct, like "Java (premium)", etc.