Fields of the type List allow the user to select one out of multiple options. In the user interface, they may be displayed as drop-down lists (default display option) or option (radio) buttons.

Important: To create a field of type List, you must first create a custom lookup table to associate with the field.

Custom lookup tables are specific to your design and intended to provide lists of options for custom fields of the type List. Typically, each List field has its own custom lookup table that was created for it. For information about custom lookup tables, see Adding Custom Lookup Tables.

Depending on your design, some lookup tables may be re-used in several custom fields—even in different object definitions. For example, a table providing the Yes/No/Unknown options for a list of option buttons can be reused for many different fields.

You can change the contents of a custom lookup table by adding, editing, or deleting items to create useful lists that are customized for your design.

Points To Remember about List Fields

Keep the following points in mind when working with List fields:

•Each List field must be associated with a custom lookup table.

•To create a list of option buttons, create a regular List field and use the type="radio" tag attribute when including it in a form or block file. For details, see List Field Tag Attributes.