| View previous topic :: View next topic |
| Author |
Message |
Francesco Savastano
Guest
|
 Posted: Mon Oct 13, 2003 8:38 am Post subject: how to expose a property of the ancestor |
 |
|
hi: i have a component that is descendent from another component created by
me: some properties that are published in the ancestor are not visible in
the object inspector for the derived component. How can i expose them?
Thanx in advance.
|
|
| Back to top |
|
 |
ozbear
Guest
|
| Posted: Mon Oct 13, 2003 9:28 am Post subject: Re: how to expose a property of the ancestor |
|
|
On Mon, 13 Oct 2003 10:38:39 +0200, "Francesco Savastano"
<francosava (AT) libero (DOT) it> wrote:
| Quote: | hi: i have a component that is descendent from another component created by
me: some properties that are published in the ancestor are not visible in
the object inspector for the derived component. How can i expose them?
Thanx in advance.
|
What do you mean by "some properties" aren't visible?
Not everything is publishable to begin with and those that aren't
won't display properly if you force it. What are the class elements
of the ancestor class that are published and not being republished
in the descendent?
Oz
|
|
| Back to top |
|
|
Francesco Savastano
Guest
|
| Posted: Mon Oct 13, 2003 9:41 am Post subject: Re: how to expose a property of the ancestor |
|
|
Well you just hit the center of my problem:
infact i'm now seeing that i cannot access the same properties of the
ancestor through the object inspector, because they probably are not
publishable and maybe i need to write a new property editor?
Do you have advices on how to write a property editor and register it in
delphi, since i never did this before?
In my case it should not be so difficult since the 2 properties are:
Property XRange:TBasicDiagrammerRange read fXRange write SetXRange;
Property YRange:TBasicDiagrammerRange read fYRange write SetYRange;
where:
TBasicDiagrammerRange=record
startvalue:single;
endvalue:single;
end;
but i would like to get some suggestion on how to do that and how to create
the class of the property editor.
Thank you very much,
Francesco.
"ozbear" <ozbear (AT) no (DOT) bigpond.spam.com> ha scritto nel messaggio
news:3f8a6f79.103372203 (AT) newsgroups (DOT) borland.com...
| Quote: | On Mon, 13 Oct 2003 10:38:39 +0200, "Francesco Savastano"
[email]francosava (AT) libero (DOT) it[/email]> wrote:
hi: i have a component that is descendent from another component created
by
me: some properties that are published in the ancestor are not visible
in
the object inspector for the derived component. How can i expose them?
Thanx in advance.
What do you mean by "some properties" aren't visible?
Not everything is publishable to begin with and those that aren't
won't display properly if you force it. What are the class elements
of the ancestor class that are published and not being republished
in the descendent?
Oz
|
|
|
| Back to top |
|
|
Ignacio Vazquez
Guest
|
| Posted: Mon Oct 13, 2003 4:16 pm Post subject: Re: how to expose a property of the ancestor |
|
|
Hello, Francesco!
You wrote on Mon, 13 Oct 2003 11:41:12 +0200:
| Quote: | TBasicDiagrammerRange=record
|
This could be the problem. Record properties aren't publishable. Convert it
to a class that derives from TPersistent and then take a look at
$(DELPHI)SourceProperty Editors to see how to write a property editor if
you still need one.
Cheers.
Ignacio
|
|
| Back to top |
|
|
Francesco Savastano
Guest
|
| Posted: Mon Oct 13, 2003 4:55 pm Post subject: Re: how to expose a property of the ancestor |
|
|
Ignacio, Thank you very much.
Francesco.
|
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
