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Tech Tip: Adding a Reference ID to a List Item
PRODUCT: 4D | VERSION: 6.5 | PLATFORM: Mac & Win
Published On: January 12, 2001
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The Current Item Properties area contains an entry area for the item's Reference ID. The Reference ID is designed as a unique identifier for the item. It is of use only when you manage lists using methods.

When you need to use the language to determine which item in a list a user selects (e.g., which item in a hierarchical menu is selected), you can identify the user's choice using the Reference ID of the item.