🚀 go-pugleaf

 Hi

Sorry....re my post, the other question is that in a form where there are a
number of buttons, a progress bar and Database edit controls, is there a way
of iterating through only the data aware components to change their data
source properties at runtime in response to, say, the user clicking on a
button.

Thanks


Ian Searle <iansearle@lightningit.co.uk> wrote in message
news:3a2d6283_1@dnews...
> Hi All
>
> I have an ADO multi user application. In a case where one user adds to or
> updates the back-end tables, I would like the other client applications to
> refelect the changes to the data immediately.
>
> Can anyone give me some guidance on how to achieve this. I can't believe I
> need to refresh data using an OnTimer event tied to a TTimer.
>
> Many Thanks
>
> Ian
>
>

"Ian Searle" <iansearle@lightningit.co.uk> wrote in message
news:3a2d6336_2@dnews...
> Hi
>
> Sorry....re my post, the other question is that in a form where there are
a
> number of buttons, a progress bar and Database edit controls, is there a
way
> of iterating through only the data aware components to change their data
> source properties at runtime in response to, say, the user clicking on a
> button.
>
> Thanks
>

Well, you COULD iterate through the components the parent owns, and test
cast them e.g.

for (int i=0; i<ComponentCount; i++) {
  TDBGrid *d = dynamic_cast< TDBGrid* >(Components[i]);
  TDBEdit *e = dynamic_cast< TDBEdit* >(Components[i]);

  if (d) d->DataSource = DataSource2;
  else if (e) e->DataSource = DataSource2;
}


But isn't it simpler to just to access all the components by name?

DBGrid1->DataSource = DataSource2;
DBEdit1->DataSource = DataSource2;


Robin