1. Strange ListView Behavior
- Posted by don cole <doncole at pac?ell.n?t>
May 23, 2008
-
Last edited May 24, 2008
When I
setLVItemText(ListView89,2,2,"***")
into an empty ListView. Nothing happens.
However if I
for x=1 to getLVCount(ListView89) do
junk&=addLVItem(ListView89,0,"")
end for
First
then it works ok.
Don Cole
2. Re: Strange ListView Behavior
don cole wrote:
>
> When I
>
> setLVItemText(ListView89,2,2,"***")
>
> into an empty ListView. Nothing happens.
Let me get this straight ... you are trying to change the text of a non-existant
item and you're surprised that it doesn't do anything.
> However if I
>
> for x=1 to getLVCount(ListView89) do
> junk&=addLVItem(ListView89,0,"")
> end for
>
> First
>
> then it works ok.
Then you add some stuff and now changing items works ...
Yep, that is weird.
--
Derek Parnell
Melbourne, Australia
Skype name: derek.j.parnell
3. Re: Strange ListView Behavior
don cole wrote:
>
> When I
>
> setLVItemText(ListView89,2,2,"***")
>
> into an empty ListView. Nothing happens.
>
> However if I
>
> for x=1 to getLVCount(ListView89) do
> junk&=addLVItem(ListView89,0,"")
> end for
>
> First
>
> then it works ok.
>
> Don Cole
I'd expect that.
setLVItem() sets an item's properties. The item must exist prior.
If you add it first, then it exists and can be set.
I jnow, some routine sets, like defineUserProperties() and friends, weren't
designed like this. But I think this behaviour should remain the exception. add()
adds and sets somehow, set() only sets.
The release of win32lib 0.70.4a will be delayed a little due to the current
development activity for Eu v4.0. I'm now targetting June 15 or something around
that date.
CChris
4. Re: Strange ListView Behavior
Derek Parnell wrote:
>
> don cole wrote:
> >
> > When I
> >
> > setLVItemText(ListView89,2,2,"***")
> >
> > into an empty ListView. Nothing happens.
>
>
> Let me get this straight ... you are trying to change the text of a
> non-existant
> item and you're surprised that it doesn't do anything.
>
>
> > However if I
> >
> > for x=1 to getLVCount(ListView89) do
> > junk&=addLVItem(ListView89,0,"")
> > end for
> >
> > First
> >
> > then it works ok.
>
> Then you add some stuff and now changing items works ...
>
> Yep, that is weird.
>
>
> --
> Derek Parnell
> Melbourne, Australia
> Skype name: derek.j.parnell
Of course I start out with,
global constant ListView89 = createEx( ListView, {"ListView89"," "," "," "," ","
"," "," "},
Window1, 4, 4, 776, 148,
w32or_all({LVS_REPORT,LVS_SHOWSELALWAYS}), 0 )
Don Cole
5. Re: Strange ListView Behavior
CChris wrote:
>
> don cole wrote:
> >
> > When I
> >
> > setLVItemText(ListView89,2,2,"***")
> >
> > into an empty ListView. Nothing happens.
> >
> > However if I
> >
> > for x=1 to getLVCount(ListView89) do
> > junk&=addLVItem(ListView89,0,"")
> > end for
> >
> > First
> >
> > then it works ok.
> >
> > Don Cole
>
> I'd expect that.
> setLVItem() sets an item's properties. The item must exist prior.
> If you add it first, then it exists and can be set.
> I jnow, some routine sets, like defineUserProperties() and friends, weren't
> designed like this. But I think this behaviour should remain the exception.
> add() adds and sets somehow, set() only sets.
>
> The release of win32lib 0.70.4a will be delayed a little due to the current
> development activity for Eu v4.0. I'm now targetting June 15 or something
> around
> that date.
>
> CChris
Thanks CChris,
I'll just keep doing it the same way. Not really a problem but weird.
Don Cole
