Strange preview behaviour

Zaxomatic

Hi everyone,

I have one problem that really it's letting me go mad.

My program is a single executable in a network folder, with the report files on the same location.
Randomly, and only on some specific client PCs (1 or 2 out of 10), sometimes the preview appears as an empty page (with no white area inside) without anything previewed inside. The SAME IDENTICAL preview works on the other PCs. The strange thing is that there is nothing installed locally, so I can't imagine why this happens.
If I retry the preview in that PC, almost everytime at the second run it works.
The report reads a PostgreSQL query, and the only Delphi code is this:

frrptStampa.LoadFromFile('report_name_01.fr3');
frrptStampa.ShowReport(True);

In all oter PCs it's working as expected...

Thank you in advance for your time.


Sergio

technisoft

I think the first step would be to make sure that the query returns some data.
You need to create something which allows you to ascertain that in retrospect.

gpi

wrote:

frrptStampa.LoadFromFile('report_name_01.fr3');

Try to use filename with absolute path

Zaxomatic

technisoft wrote: »

I think the first step would be to make sure that the query returns some data.
You need to create something which allows you to ascertain that in retrospect.

The query is ok, on the other PCs tha same report shows all the data as expected. Also an the same PC, if you retry sometimes it works.
Remember that it shows a gray background preview form, not a blank report. When I try on my PC or in other PCs there is no problem.

Thank you for your time.

Sergio

Zaxomatic

gpi wrote: »

gpi wrote: »

frrptStampa.LoadFromFile('report_name_01.fr3');

Try to use filename with absolute path

I will try, but not every time the preview is with a gray background. In the 90% of the previews, on the same PC, it works normally.
So, if it was a path problem, I think that the problem should be present every time.

Thank you.

Sergio