问题
In VS LightSwitch, queries can have parameters. When creating a screen, the query parameters are shown on the screen. A choice list can be defined, in which case the field appears as a drop-down-list on the screen.
Instead of defining a static choice list, how can I read the choice list from a table?
回答1:
I've found the answer to my question here: http://social.msdn.microsoft.com/Forums/en-US/lightswitch/thread/c69f23bd-4ccb-4bbf-847f-dc01e0baef07
No, a choice list is a static list of data. If you want a dynamic list of data, you should create a table and add a relationship to it from wherever you need it. That will allow you to dynamically filter it through queries, for example.
来源：https://stackoverflow.com/questions/10064263/in-lightswitch-how-to-fill-choice-list-of-query-parameter-from-a-table