[Last Call] Learn how to a build a cloud-first strategyRegister Now

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 261
  • Last Modified:

Hiding inherited properties from baseclass users

I have a baseclass that has a Event property such as OnRead.  However a sub-class I need to write must disallow the user of this class to not change the OnRead event.  The easiest way would seem to redeclare the event property as private, but that does not seem to work.
0
nrobin
Asked:
nrobin
1 Solution
 
d003303Commented:
You can only move properties/methods of an object into a more public area, but not backwards. Otherwise, the whole object model would not work.
To make the OnRead event working like you want, override the property like

  property OnRead: TNotifyEvent read FOnRead;

to make it read-only. Even if it is published it is not visible in object inspector anymore, and you cannot change its value.

Slash/d003303
0
 
nrobinAuthor Commented:
Thanks Slash - completely forgotten you could do that!
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now