Hi,

I am thinking of using object libraries in my new application. Can
anyone please tell me the basic difference between Object libraries and
templates. Which is more preferable - using olb files or templates and
property class?

Thanks in advance.

Uma

Hi!

Uma wrote:

> I am thinking of using object libraries in my new application. Can
> anyone please tell me the basic difference between Object libraries and
> templates. Which is more preferable - using olb files or templates and
> property class?

Let's say you create an application with yellow buttons all over.
These buttons are all inherited from the olb.
Your customer tells you she wants green buttons.
With an olb all you have to do is change the olb and recompile
all the forms.

HTH

--
Gunter Herrmann
Naples, Florida, USA

Gunter Herrmann wrote:
> Hi!
>
> Uma wrote:
>
>> I am thinking of using object libraries in my new application. Can
>> anyone please tell me the basic difference between Object libraries and
>> templates. Which is more preferable - using olb files or templates and
>> property class?
>
>
> Let's say you create an application with yellow buttons all over.
> These buttons are all inherited from the olb.
> Your customer tells you she wants green buttons.
> With an olb all you have to do is change the olb and recompile
> all the forms.
>
> HTH
>
I think you're wrong there: there's no need to recompile
the form - that's the beauty of it (compared to templates)
It's been a long time since I did olb and forms, though,
and memory fades nowadays

--
Regards,
Frank van Bortel

Thanks for ur response. I tested the olb file. But the forms need to
be recompiled if we change in the olb file. That means, there doesn't
seem to be much difference between a template and an olb file!


Regards,
Uma

Hi!

Uma wrote:

> Thanks for ur response. I tested the olb file. But the forms need to
> be recompiled if we change in the olb file.

As I said. Maybe Frank confused olb changes with pll changes.

> That means, there doesn't
> seem to be much difference between a template and an olb file!

The main difference is that a change in an olb works without further
code changes. If you change a template you have to make the same
changes in all forms created from the template.
Think of an olb as something like an include file in C.

brgds

--
Gunter Herrmann
Naples, Florida, USA

Gunter Herrmann wrote:
> Hi!
>
> Uma wrote:
>
>> Thanks for ur response. I tested the olb file. But the forms need to
>> be recompiled if we change in the olb file.
>
>
> As I said. Maybe Frank confused olb changes with pll changes.
>
>> That means, there doesn't
>> seem to be much difference between a template and an olb file!
>
>
> The main difference is that a change in an olb works without further
> code changes. If you change a template you have to make the same
> changes in all forms created from the template.
> Think of an olb as something like an include file in C.
>
> brgds
>
Maybe I am (was?) mistaken. But there was some option
include or reference...
You want the Reference, iirc include (or copy?) is default?

--
Regards,
Frank van Bortel

Hi!

Frank van Bortel wrote:

> Maybe I am (was?) mistaken. But there was some option
> include or reference...
> You want the Reference, iirc include (or copy?) is default?

Yes, if you copy you lose the reference and all advantages
of an olb are gone. It would be like copying the Include
file into all source files (see my analogy with C).
This approach would be really stupid.

brgds

--
Gunter Herrmann
Naples, Florida, USA