TDBListBox Not Displying Data
lazarus / 16-Databases

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davesimplewear · 2009-10-17 01:16

I don't know if anyone else has a problem with the TDBListBox, I place
mine on a form, select datasource and field run the program and shows
a blank listbox, the lookup listbox works ok, can anyone advise if
this should be reported as a bug.

using 009.29 beta and fpc 2.5.1

Thanks for any help.

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davesimplewear · 2009-10-17 01:31

Ok have reported this as a bug now, 0014827

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boren · 2014-05-15 03:22

I have the same problem.
I use Lazarus 1.2.2.
I place TsdfDataSet which is connected to a csv file, a TDataSource, a
DBListbox, a DBLookupListbox, and a DBGrid.
DBGrid display data, but DBListbox and DBLookupListbox do not.
I don't know how to solve it.
Please help.

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LacaK · 2014-05-16 10:18

Please upload source code of small application which will show problem
you describe. Thanks.

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boren · 2014-06-28 11:46

LacaK,

Please check the source code.

Please share the solution. Now I have to Add one by one item to the
ListBox.

Cheer,

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BigChimp · 2014-06-28 11:50

@Boren, have you read Luiz Americo's comment in
http://bugs.freepascal.org/view.php?id=14827#c47486
Perhaps you need to use another control or another way of doing
things?

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LacaK · 2014-07-01 05:05

Yes, functionality of TDBListBox is NOT display all records of
selected Field from given DataSource, but only select "item"(value) of
current record  from given TDBListBox.Items.
So Items must enumerate all possible values for given Field.

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boren · 2014-07-03 14:16

LacaK,
Could you show me the code?
Thanks,

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LacaK · 2014-07-04 05:26

Code for which?

For example we have DBListBox1. Then we set these properties:
1. DataSource - datasource from which take field values
2. DataField - name of field from DataSource to which is this db-
control connected
3. Fill Items with values from which you will select value, which will
be stored in field and vice versa when active record in datasource
will be changed value in list which match value in field will be
higlighted.