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http://www.openoffice.org/issues/show_bug.cgi?id=99532





------- Additional comments from [email protected] Tue Feb 24 12:47:13 
+0000 2009 -------
No, I do not believe it is a similar concept. A "filter control" is, as you
mentioned, concerned with changing the filter set for a form and possibly then
organising a reload of the form. Using one listbox to narrow the selection in
another would instead require one listbox control to effect a second listbox
control. 

A list box "filter control" would be concerned with displaying information from
your form such as.. display all names with surname "Smith". A list box which
narrows another would instead be concerned with entering information into a form
(mostly), for instance select in one list box the manufacturer and then the list
in the second list box is immediately limited, to only show the model's
available from that manufacturer.

Presently a "filter control" is already easily achievable in Base with only a
couple of lines of macro code required (to organise a form reload). The trick is
to use the link/join between a mainform and subform. To limit the list in a
listbox depending on anothers selection requires much more code.

To see for yourself the difference between the two, please have a look at these
two example databases. The first is for a "drop down record switcher" which
would be a similar concept to the "filter control" and is found here...
http://www.oooforum.org/forum/viewtopic.phtml?t=72134 The second is for an
example database called "classes" which is found here...
http://www.oooforum.org/forum/viewtopic.phtml?t=71055&postdays=0&postorder=asc&start=15
(You will need to import the macro file separately for this one which should be
in the zip file).

I believe, on the community forums, it has been asked more often by at least a
factor of 2 to 1 for help to get one list box to narrow another, other than for
a listbox to filter a form.

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