Set specific date in DateEdit

[gfucka]

Thank you for reply.
Now it works, the error was in the string, it was (2012-01-17 ) with the final space!
I remove the space and it now work! Thank you.

I have another problem:
I want generate one or more QLabel runtime and put it in a container with scrollbar.
What container I must use?
And how I can add the QLabel to the container?

I make this:

QVBoxLayout layout;
    layout.addWidget(&labelAtt);
 
    ui->tabCartella->widget(6)->setLayout(&layout);
    labelAtt.show();

QVBoxLayout layout;
    layout.addWidget(&labelAtt);

    ui->tabCartella->widget(6)->setLayout(&layout);
    labelAtt.show();

To copy to clipboard, switch view to plain text mode 

But the label is not show and the QVBoxLayout dont have a scrollbar!

Thank you again for the answer!

[ChrisW67]

You are creating the QVBoxLayout and, I guess, the QLabel on the stack. At the end of that scope these objects will be destroyed, which will remove them form the UI.
Allocate them on the heap with operator new.

[gfucka]

I dont have undestrand,
can you explain me with some example?
Sorry but I'm a new in the world of Qt!
Thank you!

[Spitfire]

Create a widget with a layout to which you'll be adding new lables then stick that widget into scroll area.
Something like this:

MainWindow::MainWindow()
{
QVBoxLayout* lay = new QVBoxLayout(); //cache this pointer so you can easily add new labels later
 
QWidget* container = new QWidget();
container->setLayout( lay );
 
QScrollArea* sa = new QScrollArea();
sa->setWidget( container );
 
this->setCentralWidget( sa );
 
lay->addWidget( new QLabel( "new label" );
}

MainWindow::MainWindow()
{
QVBoxLayout* lay = new QVBoxLayout(); //cache this pointer so you can easily add new labels later

QWidget* container = new QWidget();
container->setLayout( lay );

QScrollArea* sa = new QScrollArea();
sa->setWidget( container );

this->setCentralWidget( sa );

lay->addWidget( new QLabel( "new label" );
}

To copy to clipboard, switch view to plain text mode 

Now when you add too many labels to fit on the screen scroll area will show scroll bars to navigate through widgets content.

Edit:
Forgot to mention that you have to set

sa->setWidgetResizable( true );

sa->setWidgetResizable( true );

To copy to clipboard, switch view to plain text mode 

otherwise scroll area will not resize container widget as more contents is added.

[gfucka]

Hi tnak you so much for your help.
I try the code and it works, but what I want to do is add a scrollarea and put into labels in a QTAbWidget.
In the mainWindow I have a QTabWidget with the name tabCartella whit 6 tab, I want put a scroll area and labels into the widget 6 (the last).
I try with this:

QVBoxLayout* lay = new QVBoxLayout(); //cache this pointer so you can easily add new labels later
 
 
 
    QWidget* container = ui->tabCartella->widget(6);
    container->setLayout( lay );
 
 
    QScrollArea* sa = new QScrollArea();
    sa->setWidget(container);
    sa->setWidgetResizable( true );
 
    ui->tabCartella->setCurrentWidget(container);
 
    lay->addWidget( new QLabel( "new label" ));

QVBoxLayout* lay = new QVBoxLayout(); //cache this pointer so you can easily add new labels later

   

    QWidget* container = ui->tabCartella->widget(6);
    container->setLayout( lay );


    QScrollArea* sa = new QScrollArea();
    sa->setWidget(container);
    sa->setWidgetResizable( true );

    ui->tabCartella->setCurrentWidget(container);

    lay->addWidget( new QLabel( "new label" ));

To copy to clipboard, switch view to plain text mode 

But when I run this code the last tab (tho one where I wans put labels) disappear!
Please help me
Thank you so much for your Help.