Group names chang when loading template

rbuser

Hello,

I haved designed a report using the end user solution. The report contains
two groups with summaries.

To print the report from inside my delphi app, I load the report using
LoadFromDatabase. But now the summaries for each group aren't reset anymore.
To find the reason, I saved the template to a text file right after loading
it from the database:

..
Rep.Template.LoadFromDatabase;
Rep.Template.FileName := 'X.RTM';
Rep.Template.SaveToFile;
..

The ResetGroup property ("ppGroup1") of the TppDBCalc is unchanged , BUT the
name of the group changed from "ppGroup1" to "ppGroup2". The names of all
other components have also changed.

How can I keep RB from renaming all components when loading a template?

Thanks
Georg

rbuser

Hi Georg,

I don't think RB changes any component name when loading a template.
RB uses the component streaming from Delphi, used for forms too.
I would change the group reset and save the report again into your database.

HTH,
Chris Ueberall;

rbuser

Hallo Chris,

the component names DO change.
The Delphi streaming system is used, but for each component, the component's
constructor is called.

I have already tried to change the reset group, I have even recreated then
whole report from scratch, but the result is always the same.

Georg

rbuser

Georg,


how do you verify that?
Does the names differ from that one in the rtm file?

component's

sure, the streaming system has to call the constructor, the only way to
create an object.
After the creation all published properties will be read, component name
inclusive.


and did you save it into your database?

regards,
Chris Ueberall;

rbuser

Hello Chris,

meanwhile I found the problem (or bug).

My form contains two TppReport components, one that contains a static
report, one that is used for dynamically loading reports from the database.
Some of the component names in the dynamically loaded reports are the same
as the names of components in the static report. If RB finds the same name
during loading the template, it generates a new unique name. Unfortuantely
this may also happen to the name of groups. If this happens, the ResetGroup
property of all calculated fields point to the wrong group, since the
property value is not adjusted to the new group name. See
TppReportTemplate.LoadSetName in ppTmplat.pas.


Georg

rbuser

Georg,

I am glad to hear you found the problem. (I thought, that in this case a
message box would be shown and complains the already existing component with
the same name).
Do you really need the second report component? (I guess no)

regards,
Chris Ueberall;

digitalmetaphors

If you are using templates, then you should only use one report object for
loading of templates in a form, just to make sure that everything goes
smoothly.


Cheers,

Jim Bennett
Digital Metaphors