Question

I am adding three tables dynamically in widget containing table widget and labels, but nothing shows on screen, I have tried to do it with vertical layout but it does not expand if i add a new row, so not scrolling.
Is there any other way to get all three tables on a same page with scrolling.

QScrollArea *m_scrollArea =ui->scrollArea_Stats;
m_scrollArea->setWidgetResizable(true);
QWidget *area = new QWidget;
QVBoxLayout *vlay = new QVBoxLayout(m_scrollArea);
area->setLayout(vlay);
StatsWidget *objStatsWidget;

for(int i=0;i<2;i++)
{
    objStatsWidget=new StatsWidget(ui->scrollArea_Stats);
    vlay->addWidget(objStatsWidget);
}

 m_scrollArea->setWidget(area);

here StatsWidget is my custom widget containing 2 lables at top and a table widget
I am adding three tables dynamically but page is not scrolling, vlay is not showing all tables it is just showing what it can show in a page without scrolling.

Answer 1

try rewrite the code as this:

m_scrollArea->setWidgetResizable(true);
QVBoxLayout *vlay = new QVBoxLayout;
StatsWidget *objStatsWidget;

for(int i=0;i<2;i++)
{
    objStatsWidget=new StatsWidget(ui->scrollArea_Stats);
    vlay->addWidget(objStatsWidget);
}
 QWidget *area = new QWidget(m_scrollArea);
 area->setLayout(vlay);
 m_scrollArea->setWidget(area);

EDIT: i made something like what you are trying to do some time ago..
so: create a custom QWidget with a QVBoxLayout as member.let’s call this object “widgetList”. then reimplement all method that you need, as addWidget, takeAt etc.. using your layout as a list
finally set widgetList as widget for your scroll area..
let me know..

I made all this because QWidgetList was not enough easy to use and i needed something else that i have omitted here..

I found my piece of code:

class WidgetList : public QWidget
{
    Q_OBJECT

public:
    WidgetList(QWidget *parent = 0);
    ~WidgetList();

    void addWidget(QWidget*);
    void removeWidget(QWidget*);

    QList<QWidget*> getListWidget() const;
    QWidget* takeAt(int) const;
    int count() const;

private:
    QVBoxLayout* layout_;
};

.cpp

WidgetList::WidgetList(QWidget *parent)
    : /**/QWidget(parent)
      /**/,layout_(new QVBoxLayout(this))
{
    this->setLayout(layout_);
}


void WidgetList::removeWidget(QWidget* widget)
{
    layout_->removeWidget(widget);
}

void WidgetList::addWidget(QWidget* widget)
{
    layout_->addWidget(widget);
}

QWidget* WidgetList::takeAt(int index) const
{
    return layout_->takeAt(index)->widget();
}

int WidgetList::count() const
{
    return layout_->count();
}

this will be your new Widget with layout where to insert your custom widget..
then i put widgetList as widget of QScrollArea:

QScrollArea* scrollArea = new QScrollArea;
widgetList* list = new widgetList(scrollArea);
scrollArea->setWidget(list);

everything works for me..

EDIT 2: i post my main that works good with my previous code:

QScrollArea* scroll = new QScrollArea;
WidgetList* w = new WidgetList(scroll);
QLabel * label = new QLabel("Label1");
QLabel* label2 = new QLabel("label2");
QTableWidget* table = new QTableWidget(10,10);

w->addWidget(label);
w->addWidget(label2);
w->addWidget(table);

scroll->setWidget(w);
scroll->setWidgetResizable(true);
scroll->show();