In the case of combo boxes, users can select one entry from the list entries or enter text themselves. The entries, which are offered as a list from which users can select, may originate from any database table. The entries that users select or enter so that they can be saved can be saved either in the form only, or in a database. If they are saved in a database, they will be written to the database table on which the form is based.
在组合框中，用户可以从列表条目中选择一个条目，也可以自己输入文字。列表中的条目可以来自任何一个数据库表格。选择或输入条目后，可以将它们只保存在表单中，此外也可以保存在数据库中。如果保存在数据库中，则这些条目将被写入到表单使用的数据库表格中。