Author Topic: Data module  (Read 5306 times)


  • Jr. Member
  • **
  • Posts: 86
    • Krzynio's home page
Data module
« on: February 11, 2013, 11:32:10 am »

I put any database connection componet i.e. TZConnection on datamodule and this is the only component on this datamodule.
I put any query component on another form. The datamodule is included in uses clause in this form.
From designer level I cannot assign this connection component to this query.Connection property.
From code it is of course possible and it works query.Connection := datamodule.connection.
But is enough to put any query component on datamodule and assigning the connection to the query component from form from designer level works fine.
Is it a bug in Lazarus or I am untutored in something?

Debian Testing x64 with XFCE 4.14 - Lazarus trunk, FPC 3.0.4
Windows 10 x64 - Lazarus 2.0.10, FPC 3.2.0


  • Hero Member
  • *****
  • Posts: 1643
Re: Data module
« Reply #1 on: February 11, 2013, 01:33:56 pm »
I cannot reproduce with neither Lazarus 1.0.7 fixes, nor Lazarus 1.1 (rev. 40260), Windows 7.

I open new project, then add new data module, put ZConnection on it and ZQuery on the main form. Then in object inspector I can select ZConnection1 in ZQuery1.Connection property.
This is all I did, I didn't even need to add unit2 (the one with data module) to uses list in unit1.

Which Lazarus version do you have? And which os?


  • Hero Member
  • *****
  • Posts: 5365
Re: Data module
« Reply #2 on: February 11, 2013, 07:36:47 pm »
you need to have the datamodule open in your ide in order to be able to select the connection in it.
Good judgement is the result of experience … Experience is the result of bad judgement.

OS : Windows 7 64 bit
Laz: Lazarus 1.4.4 FPC 2.6.4 i386-win32-win32/win64


TinyPortal © 2005-2018