Board index » cppbuilder » ListBox->Items->AddObject but how to delete?

2005-08-05 05:34:26 PM
cppbuilder19
Hi,
I don't know if this is even an issue but I would like help clearing it from
my mind.
I use a TListBox component and to it use the following type of staement
int nMyReference; // This is then assigned a value somwhere else
ListBox1->Items->AddObject("My Item Name", (TObject *) nMyReference);
I can happily get to the nMyReference and do what I need, but on reading
about AddObject in the help files, it suggests that objects are not
destroyed when the ListBox is destroyed. If this is the case, how do I then
destroy the objects I have created?
cheers
 

Markcr wrote:
Something like:
void __fastcall TFrmSectorViewer
::lvwFileViewDeletion( TObject * Sender,
TListItem * Item)
{
delete static_cast<TYourTypeName *>( Item->Data );
}
Note that if your object is an array you will need to use 'delete[]'.
For myself when I do this I prefer to use a wrapping class even for
simple types. That way if I ever add more information it's less
traumatic.
--
Andrue Cope [TeamB]
[Bicester, Uk]
info.borland.com/newsgroups/guide.html
 

"Markcr" < XXXX@XXXXX.COM >wrote in message
that needs to be freed. That statement only applies if you are storing true
TObject-derived class instances, which you are not doing.
Gambit
 

{smallsort}

"Andrue Cope [TeamB]" < XXXX@XXXXX.COM >wrote in message
Gambit
 

Thank you, over cautious here!
 

Remy Lebeau (TeamB) wrote:
--
Andrue Cope [TeamB]
[Bicester, Uk]
info.borland.com/newsgroups/guide.html