[Lazarus] DBLookupComboBox vs Qt

[zeljko]

On 11/05/2016 11:43 AM, Gabor Boros via Lazarus wrote:
> 2016. 11. 05. 10:47 keltezéssel, zeljko írta:
>> On 11/05/2016 10:30 AM, Gabor Boros via Lazarus wrote:
>>> Hi All,
>>>
>>> Created an issue in the past but got no answer. Now attached a better
>>> example project. Please try and comment. Is it a Qt bug or this is the
>>> expected behaviour?
>>>
>>> http://bugs.freepascal.org/view.php?id=28597
>>
>> Can it be reproduced with regular TComboBox ? I cannot understand what's
>> exact problem from issue explanation ...
>
> Yes I got same result with a TComboBox. See the attached screenshot,
> better than my description.

Ok, then please create example project with TComboBox - it's easier to 
fix it then.

>
>> 1.TCombobox is empty
>
> Yes.
>
>> 2.You are assigning items
>
> Yes, in two places. In FormCreate and in FormShow.
>
>> 3.ItemIndex should stay -1 instead of 0 (first item selected ? )
>
> No automatic selection if Items filled up in FormCreate but automatic
> selection if filled up in FormShow.

I see, in FormShow TComboBox handle is created, so something happening 
at WS part.

>
>
>> 4.What about other widgetsets ?
>
> On Windows works as expected. Nothing selected. (Got same result with
> Delphi.)

Ok, just create example project with TComboBox which reproduces problem 
so I'll sit with it and try to fix it somehow.

zeljko