How to insert the correct component via drag and drop depending on the datatype?

rbuser

Hello,
I have some blob fields in my DataSet, where RichText is stored in. In the
pipeline it's a memo-type field - the same as a "normal" blob field, i.e.
plain text.
If I drag such a field from the DataTree into the template I'm designing,
then a DBMemo gets added, not a DBRichText, so I have to replace the
component manually.

My question is:
is there any way to determine the "real" type of a memo-filed and to insert
either a DBMemo or a DBRichText depending an that type?

nicocizik

Hi Mark,

This is not currently a feature of the DataTree Window.

The DataTree uses the TppLayoutFactory (ppRptWiz.pas) class to determine
which component is created for a given field. This class is completely
replacable so it would be possible for you to create your own LayoutFactory
that adds some functionality to check to see if a memo field contains
RichText code. Take a look at the CreateComponentForField and
DataTypeToComponentClass routines specifically.

To replace the existing LayoutFactory you would simply assign your own to
the gcLayoutFactory variable.

Moving forward, this would be a nice feature and is something we will
consider adding to a later release of ReportBuilder.

--
Regards,

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

rbuser

Hi Nico,
sounds good about a possible implementation of this feature!

Also thank you for the tip how it could be done. I will take a look into it,
I think.

Mark