dropdown - 过滤下拉控件的记录

Question

如何过滤下拉控件的行？

目前我正在将 Items 属性绑定到列，例如Items=Table1.Name ，但这会使用所有可能的行填充下拉列表。我想过滤另一列满足条件的所有行，例如Table1.Date=Today()

Answer 1

您可以在下拉控件的属性中使用Filter表达式：Items

Items: Filter(Table1, Date = Today())

您可以使用“高级”视图选择要在下拉列表中显示的表格字段（在下面的示例中Name，如您在示例中所做的那样）：

Answer 2

Just a note that I had to do something a little more complex for filtering out results for a SQL source where I also needed a Distinct.

The basic idea is I wanted years out of a table, but only last year and whatever years we had listed. Also worth noting the 500 row limit was a bit of an issue against my original date table, and so this only works with smaller tables.

In my case, I needed to create a view to reduce the data granularity

Distinct(Filter('[dbo].[YearList]', YearNumber >= Year(Now()) -1),  YearNumber)