First of all. I'm using D2007 and D7, and have the same problem with
both Delphi's.
I've made a couple of descendents of TOwnedCollection, and everything
works perfectly. I can add new items, and very important to my
application, everything streams correctly.
BUT.... when I add another of my descendents to the CollectionItem, and
then add the first item to the collection, I can fill in the properties
for the first item, and I get the ellipse button when I reach the
embedded collection, but when I click on it nothing happens.
Sorry, I know this explanation probably isn't making sense, so below is
a quick explanation of what I mean. I'm typing this from memory, so
please accept a couple of mistakes.
MySecondCollectionItem = class(TCollectionItem)
Private
FAnotherValue = integer
Published
Property AnotherValue : integer read FAnotherValue write
FAnotherValue;
End;
MySecondCollection = class(TOwnedCollection)
// all the properties.
End;
MyFirstCollectionItem = class (TCollectionItem)
private
fsomeValue : integer;
fSecondCollection : TSecondCollection;
published
property SomeValue : integer read fsomeValue write fsomeValue;
property SecondCollection : TSecondCollection
read fSecondCollection
write fSecondCollection;
end;
MyFirstCollection = class(TOwnedCollection)
// all the properties.
End;
I also have a CollectionClass for each of these CollectionItem classes,
and two Components that use each of the Collections.
I've overridden all the necessary properties/methods/events in the
Collections, and the CollectionItems, and everything works perfectly in
code. The problem is in the Object Inspector. When I add a
MyFirstCollectionItem to the MyFirstCollection, I can fill in the value
of the SomeValue property, and then when I select the SecondCollection
property I get the ellipse button, but when I click on the ellipse
button, I expect to get the Collection Popup dialog that allows me to
add items to the Second Collection, and nothing happens.
I can post the actual code if anyone thinks they can help.
Alternatively, does anyone have a working example of a Collection that
has another collection embedded in it, and that works properly in the
Object Inspector so that I can compare my code to theirs' and find the
problem.
Sincerely,
Brad Gies
-------------------------------------
NLM Software
Southfield, MI, USA
-------------------------------------
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