Problem with DADE when BDE is not installed

rbuser

Using RB 7
On my dev-machine I have the BDE installed. For a certain project I utilze
ADO. On my customers machines only ADO is installed. When I try to edit the
reports I designed on my machine, I get an error, that the BDE could not be
initialized, altough ADO is selected as DB-connection.

Any idea?

Bernd

rbuser

Hi Bernd,

did you check your uses clauses for BDE related units (dbTables, BDE)?

regards,
Chris Ueberall;

rbuser

Hi Chris,

Yep. They are there. Willingly, because at runtime it is possible that
either ADO or BDE will be used. The problem is, that if BDE is not present,
I can?t even select ADO.

Moreover there is a problem RB forgetting the DB settings, but this is
something I haven?t tracked down yet.

rgds
Bernd

utilze
the
be

nardmoseley

1. If the 'uses' clause of your application contains daDBBDE or DBTables or
any unit related to the BDE, then the application will require the BDE to be
installed on the users machines.

2. The Designer.DataSettings determine the connection settings for new
dataviews that you create. However, once a dataview is created, it contains
the connection settings that were applied when it was created. Also, note
that a dataview cannot be switched from BDE access to ADO access without
deleting the dataview and recreating it. There are separate dataview classes
used for each type of connectivity: TdaBDEQueryDataView and
TdaADOQueryDataView. The only workaround for this would be to edit the .rtm
templates and modify the class names.

3. At Delphi design-time the Designer.DataSettings are saved to
RBuilder.ini. For the end-user designer, the TppDesigner.DataSettings
specify the connectivity.



--
Nard Moseley
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Hello Nard,

or
be
But why? The rest of my program runs without problems, only RB fails, if I
want to use DADE.

contains
That?s not true. With v7 sometimes the settings get lost and I have to
recreate them in order to edit the report.

Ok, this is something I have control over.

Thank you,

Bernd

rbuser

Bernd,


that's not an ReportBuilder issue. Every application will fail when using BDE without beeing installed itself.
Try to use any BDE related component in such an environment with your own test application and see what happens.

regards,
Chris Ueberall;