QHash compile error

[marcel]

hash.insert(1, comboBox_1);
hash.insert(2, comboBox_2);
hash.insert(3, comboBox_3);

But you cannot do this in the header, in the class declaration.
It has to be in a function.

Regards

[jiveaxe]

You're right; now the program compiles but there is a segmentation fault during execution; here the cpp file:

#include <QtGui>
#include "maindialog.h"
 
MainDialog::MainDialog(QWidget *parent)
	: QDialog(parent)
{
	hash.insert(1, comboBox_1);
	hash.insert(2, comboBox_2);
	hash.insert(3, comboBox_3);
 
	comboBox_1 = new QComboBox;
	comboBox_2 = new QComboBox;
	comboBox_3 = new QComboBox;
 
	for(int i = 1; i < 4; i++)
		for(int j = 0; j < 4; j++)
			hash.value(i)->addItem("New Entry");
 
	QVBoxLayout mainLayout;
	mainLayout.addWidget(comboBox_1);
	mainLayout.addWidget(comboBox_2);
	mainLayout.addWidget(comboBox_3);
}

#include <QtGui>
#include "maindialog.h"

MainDialog::MainDialog(QWidget *parent)
	: QDialog(parent)
{
	hash.insert(1, comboBox_1);
	hash.insert(2, comboBox_2);
	hash.insert(3, comboBox_3);

	comboBox_1 = new QComboBox;
	comboBox_2 = new QComboBox;
	comboBox_3 = new QComboBox;

	for(int i = 1; i < 4; i++)
		for(int j = 0; j < 4; j++)
			hash.value(i)->addItem("New Entry");

	QVBoxLayout mainLayout;
	mainLayout.addWidget(comboBox_1);
	mainLayout.addWidget(comboBox_2);
	mainLayout.addWidget(comboBox_3);
}

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The problem seems the line using hash member.

Bye

[marcel]

You have to instantiate the combos BEFORE adding them to the hash.

Regards

[jiveaxe]

Ops, you're again right.

Thanks

[momesana]

you also should create the layout with new instead of using an object that dies when it reaches the end of the scope of the constructor.