Re: [libreoffice-users] Re: List and Combo boxes

[Dan <elderdanlewis@gmail.com>]

Andreas Säger wrote:
> Am 12.06.2012 21:08, Dan wrote:
> > To populate a list or combo box, I have been using single field tables.
> > Seems like it should be possible to use a single table for more than one
> > list or combo box. (The SQL statement for selecting a field for a list
> > or combo box is: SELECT "field name" FROM "table name".) Has anyone
> > tried this before? Any problems doing this?
> >
> > --Dan
>
> In a combo box you "always" want:
> SELECT DISTINCT "Field" FROM "Table" ORDER BY "Field"
>
> In a list box you "always" want:
> SELECT "Field or Concatenation", "Primary Key"
> FROM "Table"
> ORDER BY "Field or Concatenation"
> Bound field=1
> Data field=The form's foreign key
>
> [Example] Relations reflected by list boxes in forms
> > http://user.services.openoffice.org/en/forum/viewtopic.php?f=100&t=40444
     OK, I see I was not explicit enough. The tables I use for list 
boxes always contain only ONE field using VCHAR as the field type. There 
are no repetitions in this field, so all values entered are DISTINCT.
     The benefits I get from this are:

1) If I enter a new value in the field, close the table, and open it 
again; the entries have rearranged themselves alphabetically.

2) The entries always appear in alphabetically order in the list box 
after clicking the refresh tool in the form.

3)   Field A has been replaced with a list box (i.e., Monday, Tuesday, 
Wednesday) in a form. (The table for this contains one field whose 
values are Monday, Tuesday, and Wednesday.) When field A appears in a 
report, the only values showing are Monday, Tuesday, and Wednesday.
      If I were to use a table having two fields: ID, Day (i.e., 1,2,3 
for ID & Monday, Tuesday, Wednesday for Day); the form has shown the 
Monday, Tuesday, Wednesday values while the reports show 1, 2, 3. 
Obviously, more has to be included in the SQL than what I wrote in the 
beginning. But with the limiting structure of my tables for list boxes 
do not require anything more.

--Dan


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