问题
Embarrassingly simple question but I can't work it out or find the answer via google.
Got something like this with two colums
But when selected it only displays one column, making the information much harder to read/ understand.
Tried changing properties in property sheet (such as column number) but to no apparent effect.
回答1:
It depends to a certain extent on what you are doing, often something like this suits:
SELECT Id, Surname & ", " & Forename from Table
In other words, the bound column is a unique ID and the selection column includes both the surname and forename in a single column.
EDIT based on additional information:
SELECT [Contact].[CID], [Contact].[Csname] & ", " & [Contact].[Cfname]
FROM [Contact] ORDER BY [CID], [Csname], [Cfname];
回答2:
Since my first column is used to group items in the second it didn't look nice to just separate them using
SELECT ID, [Type] & ": " & [Title] AS BothValues
as suggested. With a lot of items the dropdown looks confusing like in this example.
I found out that Access seems to display the first (technically) visible column in the combobox after a selection has been made. Therefore I ended up using
SELECT ID, [Type] & ": " & [Title] AS BothValues, Type, Title
and setting the width of the second column to the smallest possible, de facto invisible value (0";0.007";1",1"). Don't forget to raise the column count (4). Now the dropdown appears grouped, but I still get both information after the selection.
来源：https://stackoverflow.com/questions/11762395/ms-access-display-two-columns-in-combo-box