setting tab order for custom widgets not working

[wagmare]

hi friends/Experts,
Im trying to set the tab order for the Custom widget im adding on the widget created by designer.

I used scrollArea and a line edit . so when the user enter 10, 10 custom widgets will be added to the scroll area.

I set the scrollArea tab no as ex:5 and 6,7 and 8 to the ok , cancel, clear push buttons.

when the text entered in the edit
entries = LineEdit entry.

while(entries)
    {
        SpeciesInfo *SpeciesParent = new SpeciesInfo(this);
 
        m_speciesList<<SpeciesParent;
 
        scrollLayout->addWidget(SpeciesParent); //Entries added to scrollarea layout
 
 
        entries --;
    }
 
 
 
    ui.speciesScrollArea->setFocusProxy(m_speciesList.at(0));
    ui.speciesScrollArea->setFocusPolicy(Qt::TabFocus);

while(entries)
    {
        SpeciesInfo *SpeciesParent = new SpeciesInfo(this);

        m_speciesList<<SpeciesParent;

        scrollLayout->addWidget(SpeciesParent); //Entries added to scrollarea layout


        entries --;
    }
   


    ui.speciesScrollArea->setFocusProxy(m_speciesList.at(0));
    ui.speciesScrollArea->setFocusPolicy(Qt::TabFocus);

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but the taborder is coming to speciesInFo only after ok,cancel and clear button. tab order is not coming inside the speciesInfo when it reach the tab on ScrollArea.

addition information:

scrollLayout = new QVBoxLayout;
    scrollWidget->setLayout(scrollLayout);
    ui.speciesScrollArea->setWidget(scrollWidget);
    ui.speciesScrollArea->setContentsMargins(0,0,0,0);
    ui.speciesScrollArea->viewport()->setAutoFillBackground(true);

scrollLayout = new QVBoxLayout;
    scrollWidget->setLayout(scrollLayout);
    ui.speciesScrollArea->setWidget(scrollWidget);
    ui.speciesScrollArea->setContentsMargins(0,0,0,0);
    ui.speciesScrollArea->viewport()->setAutoFillBackground(true);

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inside SpeciesInfo policy setFocusPolicy(Qt::TabFocus);

please help me. thanks in advanceSpProblem.png