Pointer Question related to QLineEdit

Hey Guys, I've got a simple pointer question related to QTextEdit. I have 18 QLineEdit boxes. I want to create an Array of QTextEdit pointers to point to the 18 instances of QTextEdit so that I can access them using an index rather then having to call each instance every time. When I do this, however, a runtime error is generated.

The 18 instances of QLineEdit

Code:

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QLineEdit *byte0Edit;
    QLineEdit *byte1Edit;
    QLineEdit *byte2Edit;
    QLineEdit *Byte3Edit;
    QLineEdit *byte6Edit;
    QLineEdit *byte4Edit;
    QLineEdit *byte7Edit;
    QLineEdit *byte5Edit;
    QLineEdit *byte13Edit;
    QLineEdit *byte12Edit;
    QLineEdit *byte10Edit;
    QLineEdit *byte14Edit;
    QLineEdit *byte8Edit;
    QLineEdit *byte11Edit;
    QLineEdit *byte15Edit;
    QLineEdit *byte9Edit;
    QLineEdit *byte16Edit;
    QLineEdit *byte17Edit;
 
    byte0Edit = new QLineEdit(groupBox_2);
    byte0Edit->setObjectName(QString::fromUtf8("byte0Edit"));
    byte0Edit->setGeometry(QRect(177, 40, 31, 20));
    byte1Edit = new QLineEdit(groupBox_2);
    byte1Edit->setObjectName(QString::fromUtf8("byte1Edit"));
    byte1Edit->setGeometry(QRect(217, 40, 31, 20));
    byte2Edit = new QLineEdit(groupBox_2);
    byte2Edit->setObjectName(QString::fromUtf8("byte2Edit"));
    byte2Edit->setGeometry(QRect(257, 40, 31, 20));
    Byte3Edit = new QLineEdit(groupBox_2);
    Byte3Edit->setObjectName(QString::fromUtf8("Byte3Edit"));
    Byte3Edit->setGeometry(QRect(297, 40, 31, 20));
    byte6Edit = new QLineEdit(groupBox_2);
    byte6Edit->setObjectName(QString::fromUtf8("byte6Edit"));
    byte6Edit->setGeometry(QRect(417, 40, 31, 20));
    byte4Edit = new QLineEdit(groupBox_2);
    byte4Edit->setObjectName(QString::fromUtf8("byte4Edit"));
    byte4Edit->setGeometry(QRect(337, 40, 31, 20));
    byte7Edit = new QLineEdit(groupBox_2);
    byte7Edit->setObjectName(QString::fromUtf8("byte7Edit"));
    byte7Edit->setGeometry(QRect(457, 40, 31, 20));
    byte5Edit = new QLineEdit(groupBox_2);
    byte5Edit->setObjectName(QString::fromUtf8("byte5Edit"));
    byte5Edit->setGeometry(QRect(377, 40, 31, 20));
    byte13Edit = new QLineEdit(groupBox_2);
    byte13Edit->setObjectName(QString::fromUtf8("byte13Edit"));
    byte13Edit->setGeometry(QRect(337, 70, 31, 20));
    byte12Edit = new QLineEdit(groupBox_2);
    byte12Edit->setObjectName(QString::fromUtf8("byte12Edit"));
    byte12Edit->setGeometry(QRect(297, 70, 31, 20));
    byte10Edit = new QLineEdit(groupBox_2);
    byte10Edit->setObjectName(QString::fromUtf8("byte10Edit"));
    byte10Edit->setGeometry(QRect(217, 70, 31, 20));
    byte14Edit = new QLineEdit(groupBox_2);
    byte14Edit->setObjectName(QString::fromUtf8("byte14Edit"));
    byte14Edit->setGeometry(QRect(377, 70, 31, 20));
    byte8Edit = new QLineEdit(groupBox_2);
    byte8Edit->setObjectName(QString::fromUtf8("byte8Edit"));
    byte8Edit->setGeometry(QRect(500, 40, 31, 20));
    byte11Edit = new QLineEdit(groupBox_2);
    byte11Edit->setObjectName(QString::fromUtf8("byte11Edit"));
    byte11Edit->setGeometry(QRect(257, 70, 31, 20));
    byte15Edit = new QLineEdit(groupBox_2);
    byte15Edit->setObjectName(QString::fromUtf8("byte15Edit"));
    byte15Edit->setGeometry(QRect(417, 70, 31, 20));
    byte9Edit = new QLineEdit(groupBox_2);
    byte9Edit->setObjectName(QString::fromUtf8("byte9Edit"));
    byte9Edit->setGeometry(QRect(177, 70, 31, 20));
    byte16Edit = new QLineEdit(groupBox_2);
    byte16Edit->setObjectName(QString::fromUtf8("byte16Edit"));
    byte16Edit->setGeometry(QRect(457, 70, 31, 20));
    byte17Edit = new QLineEdit(groupBox_2);
    byte17Edit->setObjectName(QString::fromUtf8("byte17Edit"));

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I then declare an array of QLineEdit Pointers. And point at the 18 instances of QLineEdit.

Code:

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QLineEdit * LineEditArray[18];
 
       LineEditArray[0] =  ui.byte0Edit;
	LineEditArray[1] =  ui.byte1Edit;
	LineEditArray[2] =  ui.byte2Edit;
	LineEditArray[3] =  ui.Byte3Edit;
	LineEditArray[4] =  ui.byte4Edit;
	LineEditArray[5] =  ui.byte5Edit;
	LineEditArray[6] =  ui.byte6Edit;
	LineEditArray[7] =  ui.byte7Edit;
	LineEditArray[8] =  ui.byte8Edit;
	LineEditArray[9] =  ui.byte9Edit;
	LineEditArray[10] = ui.byte10Edit;
	LineEditArray[11] = ui.byte11Edit;
	LineEditArray[12] = ui.byte12Edit;
	LineEditArray[13] = ui.byte13Edit;
	LineEditArray[14] = ui.byte14Edit;
	LineEditArray[15] = ui.byte15Edit;
	LineEditArray[16] = ui.byte16Edit;
	LineEditArray[17] = ui.byte17Edit;

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I then try to set the text of the QLineEdit. This is where the error is generated on the first call to setText.

Code:

---

for(int i = 0; i < 18; i++)
{
	LineEditArray[i]->setText("");
}

---

I can tell I'm overlooking something. Any ideas? Thanks.

Why you not use a model? QStandardItemModel to fille a QTreeView
2 columns column 0 as label and 1 editable to data ... like QDesigner Propriety...


Your way ....

Code:

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enum { NumComandButton = 13 };   /* on header */
 
 /* valid action */
   QList<QAction *> actionlist = Layer->MainActions();
   Q_ASSERT ( actionlist.size() == NumComandButton ); 
     for (int i = 0; i < NumComandButton; ++i) {
        tbutton[i]->SetAction(actionlist[i]);
        tbutton[i]->setEnabled(true);
    }

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The model sample:

write new model 2 column

Code:

---

QStandardItemModel *PageXmlHandler::ModelBase()
{
	bold_base_font = qApp->font();
	flags_yes = Qt::ItemIsEditable | Qt::ItemIsEnabled | Qt::ItemIsSelectable;
	flags_no = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
	bold_base_font.setBold ( true );
	model = new QStandardItemModel();
 
	       QStandardItem *Hitem1 = new QStandardItem(tr("Name"));
	       QStandardItem *Hitem2 = new QStandardItem(tr("Value"));
         Hitem1->setData(bold_base_font,Qt::FontRole);
	       Hitem2->setData(bold_base_font,Qt::FontRole);
         model->setHorizontalHeaderItem(0,Hitem1);
	       model->setHorizontalHeaderItem(1,Hitem2);
	       model->invisibleRootItem()->appendRow(ReadOnlyValue("epoche",tr("ID:")));
	       model->invisibleRootItem()->appendRow(TagValue("cat",tr("Category:")));
	       model->invisibleRootItem()->appendRow(TagName("tit_",tr("Title:"),5));
	       model->invisibleRootItem()->appendRow(TagName("desc_",tr("Description:"),15));
	       model->invisibleRootItem()->appendRow(TagName("note_",tr("Note:")));
	       model->invisibleRootItem()->appendRow(TagName("autor_",tr("Autor:")));
				 model->invisibleRootItem()->appendRow(TagValue("active",tr("Priority:")));
	       model->invisibleRootItem()->appendRow(TagValue("start",tr("Start time:")));
	       model->invisibleRootItem()->appendRow(TagValue("stop",tr("Stop time:")));
	       model->invisibleRootItem()->appendRow(TagValue("worksource",tr("Source work:")));
				 model->invisibleRootItem()->appendRow(TagValue("bgcolor",tr("Background color:")));
 
		return model;
 
}
/* each line row */
QList<QStandardItem *> PageXmlHandler::TagValue( const QString shortname , const QString HumanName )
{
	QStandardItem *noedit = new QStandardItem(HumanName);
	noedit->setFlags(flags_no);
	noedit->setData(bold_base_font,Qt::FontRole);
	noedit->setData(grundierung,Qt::BackgroundColorRole);
	QList<QStandardItem *> diritto;
	QStandardItem *Hitem2 = new QStandardItem(Current->Root_Tag(shortname).toString());
				      Hitem2->setFlags(flags_yes);
              Hitem2->setToolTip ( shortname );
				      Hitem2->setData(shortname,TAGID);
				      Hitem2->setData(2,T_FORMAT);
	            Hitem2->setData(Current->Root_Tag(shortname),OLDVALUE);
	 diritto.append(noedit);
	 diritto.append(Hitem2);
	return diritto;
}

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at end QTreeView setmodel editable and grab model back data....