Back again :-)
A question I've been meaning to post for a while,
I have a controller class which owns a collection of an abstract classes
children. There was some similarity between children to warrant placing
into the parent class but the children have a few different properties and
methods. In the controller class, I have a property called LastElement
which returns one of those children via the abstract interface. Currently I
am casting based on the fact I know what the last element was
eg
with ControllerClass do begin
ControllerClass.AddElement(TSpecificChild.Create);
with TSpecificChild(LastElement) do begin
// Do Stuff
end;
end;
Is there some way of doing this without that cast? (or an is / as paring)
It works fine as is but I would quite like to remove the casting. Should I
provide the method in the abstract class, override in the child class to
return itself?
Thanks in advance
Tony Sinclair
Holliday Group Limited
Christchurch
New Zealand
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