Re: QT5 ListBox Problem

[Lee <t.lee.davidson@xxxxxxxxx>]

On 2/28/26 2:42 AM, Benoît Minisini wrote:
> Le 28/02/2026 à 06:25, Lee a écrit :
> > On 2/27/26 7:19 PM, Benoît Minisini wrote:
> > > Le 27/02/2026 à 21:25, Lee a écrit :
> > > > > Does the problem occur with the master branch?
> > > >
> > > > Yes, the issue persists on 3.21.99 409093b (master) with all three of those GUI toolkits.
> > > >
> > > > It occurs only if ListBox.ScrollBar is set to include Horizontal with either Scroll.Horizontal or Scroll.Both.
> > >
> > > I asked because I can't reproduce the problem. Can you send me a little project that shows the bug?
> >
> > I've discovered that the issue occurs if ListBox.Scrollbar is set to include Scroll.Horizontal *prior* to ListBox.List being 
> > populated (which would include setting it via the IDE's property sheet). A project that shows the bug is very simple.
> >
> > Merely add a ListBox to a form, set its Scrollbar property to None so it can be controlled programmatically, and then use just 
> > this code in FMain.class:
> >
> > [code]
> > Public Sub Form_Open()
> >
> >      ' ListBox1.ScrollBar = Scroll.Both ' Setting it here causes the issue
> >      ListBox1.List = ["One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten"]
> >      ' ListBox1.ScrollBar = Scroll.Both ' Setting it here does not cause the issue
> >
> > End
> > [/code]
>
> Thanks, it should be fixed in master now.
>
> Regards,

Unfortunately, no, it is not fixed in version 3.21.99 cc76782 (master).

I tried using ListBox1.Refresh after setting the List, but that didn't help.


--
Lee

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