RB10.09 issue - : Error reading ppReport2.OnPreviewFormClose: Invalid property

rbuser

All

Since upgrading to 10.09 we are getting an error "Error reading
ppReport2.OnPreviewFormClose: Invalid property"

I suspect that this is because I have stopped using our custom preview and
use your in built preview form.

Is there any way to stop this error or are we going to have to open 100's of
reports and manually remove the line?

Thanks in advance.

Philip L Jackson

nicocizik

Hi Philip,

Unfortunately the OnPreviewFormClose event was referenced in each template
when you saved them. This means that you will either need to open and save
each template again without this reference, manually open each template as
text and remove the reference (with an app or by hand), or perhaps create
another simple preview plugin that implements this event and nothing else to
trick the templates into thinking this event is present.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Hi

I was trying to implement your suggestion below, I added back the reference
to myPreviewPlugin, opened up the file myPreviewPlugin, removed other
references and added the OnClose (there was not one there previously).

This now gives an error

[DCC Error] MyPreviewPlugin.pas(15): E2137 Method 'OnClose' not found in
base class

Can you please advise what I have done wrong?

Regards

Philip L Jackson



code snippett.....

unit MyPreviewPlugin;
interface
uses
Classes, Controls, ExtCtrls, Graphics, Buttons, ppPreview, ppTypes ,
Forms,
ppComm, ppProd, ppViewr , ppUtils, ppRTTI, Dialogs, SysUtils, ppPDFDevice;
type
TMyPreviewPlugin = class(TppPreview)
private
protected
procedure OnClose(Sender: TObject);override ;
public
end;


implementation
uses ppPreviewIcons, ppDesignerForms, ppForms, OpeningDM, Purchase,
Delivery;

procedure TMyPreviewPlugin.OnClose(Sender: TObject);
begin
inherited OnClose(Sender);
end;


initialization
TppPreviewPlugIn.Register(TMyPreviewPlugin);

finalization
TppPreviewPlugIn.UnRegister(TMyPreviewPlugin);

end.

nicocizik

Hi Philip,

I apologize if I was confusing. When the template is loaded, it is looking
for an event named ppReport2.OnPreviewFormClose which is an event of the
actual report object. My guess is that when the template were originally
created, they were done so with a report named ppReport2 and the event
OnPreviewFormClose was implemented somewhere in the app.

The only way to work around this issue would be to manually edit the
template files and remove this reference or "trick" the templates to
thinking the same report object and event are still present by making sure
you load them into ppReport2 with the OnPreviewFormClose event implemented.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Hi

Some of the blob data in rbItem table is in Binary format, not ASCII.

Have you a quick way of loading the binary and saving back into the table as
ASCII? I can then parse the values and remove the line.

Regards

Philip L Jackson

nicocizik

Hi Philip,

Take a look at the following example. This shows how you can edit a
template as text from blob data stored on your DB.

http://www.digital-metaphors.com/tips/EditTemplatesAsText.zip

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com