Hiding Component Property

redeclare it in the Private section?

Hello

  DragonSlayer, I don't think it's possible with Delphi, you can't unpublish a published  property

but you can hide it from Ojbect Inspector by Register the property editor with nil

try this

  RegisterPropertyEditor(TypeInfo(TFont), TMySpeedButton, 'Font', nil);

Regards,
mohammed

That's right Geo,

  But in that way, you will not be able to set Font property at all

Of course, Mohammed. I thought it was the question: to remove a published property from a component.

Geo's method is the right one

>  But in that way, you will not be able to set Font property at all

That's not completly right as he can already access the inherited font property by code

for example:

procedure TForm1.MySpeedButton1Click(Sender: TObject);
begin
with Sender as TMySpeedButton do
      inherited font.Size := 10;
end;

F68 ;-)

F68
Cool :-)

Inherited properties can be accessed from inside the component's methods or from outside as F68 showed. There is nothing that can be done for preventing that (as far as I know). But TMySpeedButton.Font won't be visible in ObjInspector and won't be settable. Declaring TMySpeedButton.Font that way doesn't override the inherited Font but only hides it.

Regards, Geo

Hi Stu,

It's not possible hide a published property. This is the Delphi's approach to the object oriented programming.

- protected property can be turn into public
- public property can be turn into published

but you can't make the published to public and public to protected. It's the same for the situation you faced with now. Font property inherited from the TControl ancestor. It's the property which is protected in TControl and published in TSpeedButton so it's not possible to hide it

  + TControl
  |
   + TGraphicControl
   |
    - TSpeedButton

Cheers,

Oktay Sancak

ceoworks, that's right, but the question here is about hiding a property from object inspector (IDE) not from component.
So the way suggested by geobul is the simplest and quickest to do this

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnaspp/html/entloctoolkit.asp
http://www.dotnetjunkies.com/Tutorial/17E26271-E212-4248-965F-4B33D2EDD38B.dcik
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpqstart/html/cpsmpnetsamples-aspnetlocalization.asp

oppssssssss, sorry ignore my last commet, it's post on the wrong place :-(

Yeah Ferruccio, I think so... Just i wanted to provide some explanation for to make it clear the Delphi's approach to the properties and their visibleness.

Have a nice day :)

Oktay,

Thanks very much, Geo.  And thanks to everyone else for the comments too.  I learn something new all the time here!!

Legendary!

Stu