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Elvis
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 Posted: Thu Oct 09, 2003 8:43 pm Post subject: How create a particular property |
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Hi,
i have created and registered a class named ONE(TComponent) and another
class named TWO(TComponent).
I put some component ONE on a form and a component TWO.
I need to create a property named REF on component TWO and, at run-time, i
would like to select the name of one of the component ONE that i put on my
form, when i click on property REF.
It is like the connection to database...if i put some connection on a form
and i put a query, i can select on my query, the name of one of connections
present.
Can someone give me a simple example for resolve this with my classes ?
Thank you.
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Ignacio Vazquez
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| Posted: Thu Oct 09, 2003 8:44 pm Post subject: Re: How create a particular property |
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"Elvis" <elvispa (AT) libero (DOT) it> wrote in message
[email]3f85c870 (AT) newsgroups (DOT) borland.com[/email]...
| Quote: | i have created and registered a class named ONE(TComponent) and another
class named TWO(TComponent).
I put some component ONE on a form and a component TWO.
I need to create a property named REF on component TWO and, at run-time, i
would like to select the name of one of the component ONE that i put on my
form, when i click on property REF.
It is like the connection to database...if i put some connection on a form
and i put a query, i can select on my query, the name of one of
connections present.
Can someone give me a simple example for resolve this with my classes ?
|
Make the property REF of type ONE.
Cheers,
Ignacio
--
No, don't send me e-mail directly. No, just don't.
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Elvis
Guest
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| Posted: Thu Oct 09, 2003 8:49 pm Post subject: Re: How create a particular property |
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I need an example becouse i don't know how can do.
Thanx.
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Ignacio Vazquez
Guest
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| Posted: Thu Oct 09, 2003 8:52 pm Post subject: Re: How create a particular property |
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"Elvis" <elvispa (AT) libero (DOT) it> wrote in message
[email]3f85c9bc (AT) newsgroups (DOT) borland.com[/email]...
| Quote: | I need an example becouse i don't know how can do.
Thanx.
|
type
TWO=class(TComponent)
...
property REF: ONE ...
...
end;
Cheers,
Ignacio
--
No, don't send me e-mail directly. No, just don't.
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Elvis
Guest
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| Posted: Fri Oct 10, 2003 9:21 am Post subject: Re: How create a particular property |
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"Ignacio Vazquez" <ivazquezATorioncommunications.com> wrote
| Quote: | "Elvis" <elvispa (AT) libero (DOT) it> wrote in message
[email]3f85c9bc (AT) newsgroups (DOT) borland.com[/email]...
I need an example becouse i don't know how can do.
Thanx.
type
TWO=class(TComponent)
...
property REF: ONE ...
...
end;
Cheers,
Ignacio
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Thank you very much IGnacio!
I have also another problem... If i set the property REF and i delete
the object "ONE" associated to my property, i have an error "Access
violation at address ...".
Can someone tell me how can i clear the value of REF, when the object
ONE associated is delete ?
Thankx.
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