Accessing children

[codeman]

Hello friends,

when I create a tabwidget say like this :

m_qtbw_myTab = new QTabWidget(this);
 
         for (int i = 0; i < m_DetailInfos.size(); ++i)
         {
             QWidget* customWidget1 = new QWidget(m_qtbw_OrderTab) ;
             QGridLayout* myLayout = new QGridLayout();
             QLabel * qlbl_Nr = new QLabel(tr("Auftrag"),customWidget1);
             qlbl_Nr->setObjectName("qlbl_Nr_"+m_DetailInfos.at(i).value(0).toString());
             QLineEdit * qle_Nr = new QLineEdit(customWidget1);
             qle_Nr->setObjectName("qle_Nr_"+m_DetailInfos.at(i).value(0).toString());
             qle_Nr->setText(m_DetailInfos.at(i).value(0).toString());
             qle_Nr->setEnabled(false);
             myLayout->addWidget(qlbl_Nr,0,0,1,1,Qt::AlignLeft);
             myLayout->addWidget(qle_Nr,0,1,1,1,Qt::AlignLeft);
             customWidget1->setLayout(myLayout);
 
             m_qtbw_myTab->addTab(customWidget1,m_DetailInfos.at(i).value(0).toString());
         }

m_qtbw_myTab = new QTabWidget(this);

         for (int i = 0; i < m_DetailInfos.size(); ++i)
         {
             QWidget* customWidget1 = new QWidget(m_qtbw_OrderTab) ;
             QGridLayout* myLayout = new QGridLayout();
             QLabel * qlbl_Nr = new QLabel(tr("Auftrag"),customWidget1);
             qlbl_Nr->setObjectName("qlbl_Nr_"+m_DetailInfos.at(i).value(0).toString());
             QLineEdit * qle_Nr = new QLineEdit(customWidget1);
             qle_Nr->setObjectName("qle_Nr_"+m_DetailInfos.at(i).value(0).toString());
             qle_Nr->setText(m_DetailInfos.at(i).value(0).toString());
             qle_Nr->setEnabled(false);
             myLayout->addWidget(qlbl_Nr,0,0,1,1,Qt::AlignLeft);
             myLayout->addWidget(qle_Nr,0,1,1,1,Qt::AlignLeft);
             customWidget1->setLayout(myLayout);

             m_qtbw_myTab->addTab(customWidget1,m_DetailInfos.at(i).value(0).toString());
         }

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And I want access the widget in a special tab I do that with:

QWidget * myWidget = qobject_cast<QWidget *>(m_qtbw_myTab->widget(0));

QWidget * myWidget = qobject_cast<QWidget *>(m_qtbw_myTab->widget(0));

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But what about accessing the Lineedit in a Widget??

I see the children during debugging and try this:

QLineEdit * myedit = qobject_cast<QLineEdit *>(myWidget->childAt(1,0));//lineedit

QLineEdit * myedit = qobject_cast<QLineEdit *>(myWidget->childAt(1,0));//lineedit

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but I get a crash.

Can I access the components on the widget without subclassing the Widget??

Thanx in advance.

[squidge]

Wouldn't it make more sense to store the value of the QLineEdit pointer and use that rather than using magic indexes which may change?

[codeman]

I don´t know if it make sense, cause it is the first situation for me to implement this thing.
What do you mean exactly with storing pointers?

QLineEdit& m_ptr_qle;
m_ptr_qle = &QLineEdit;

[squidge]

Well, you already have the pointer:

QLineEdit * qle_Nr = new QLineEdit(customWidget1);

QLineEdit * qle_Nr = new QLineEdit(customWidget1);

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So why not assign this somewhere rather than throwing it away?

m_DetailInfoUI[i].LineEdit = new QLineEdit(customWidget1);

m_DetailInfoUI[i].LineEdit = new QLineEdit(customWidget1);

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[codeman]

Thank you very nuch for your suggestions, but what is this for a contruct :

m_DetailInfoUI[i].LineEdit

m_DetailInfoUI[i].LineEdit

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Perhaps this:

struct UIElements
{
       QLineEdit* LineEdit
....
....
};
 
QVector <UIElements> m_DetailInfoUI;

struct UIElements
{
       QLineEdit* LineEdit
....
....
};

QVector <UIElements> m_DetailInfoUI;

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Am I right??

[squidge]

That'll definitely work.

[codeman]

Thanx I will try