QStandardItemModel / QTableView sorting issue

[AlphaWolfXV]

Hello all,
I have attached a simple program to demonstrate an issue I am seeing with the sorting of model data in a table view. The code is below and should compile/run. I am using QT Creator 1.2.1 on Win Vista 32 Business.
THe error I am seeing is: for example:
if the data in row 4 column 0 is changed from 7000->3300, the order of the displayed data changes in the table view, however it only seems to sort based on the first character in the sequence... Can someone please explain how one would go about sorting by the entire integer in column 0 on data changed?

Thanks,
AlphaWolfXV

main.cpp

#include <QtGui/QApplication>
#include "dialog.h"
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Dialog w;
    w.show();
    return a.exec();
}

#include <QtGui/QApplication>
#include "dialog.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Dialog w;
    w.show();
    return a.exec();
}

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dialog.cpp

#include "dialog.h"
 
Dialog::Dialog(QWidget *parent)
    : QDialog(parent)
{
    model = new QStandardItemModel(5,2);
    table = new QTableView(this);
    table->setModel(model);
    table->setSortingEnabled(true);
    table->sortByColumn(0);
 
    addData2Model();
    QVBoxLayout *layout = new QVBoxLayout(this);
    layout->addWidget(table);
    setMinimumSize(300,300);
    setLayout(layout);
 
    connect(model, SIGNAL(itemChanged(QStandardItem*)),this,SLOT(reorderTables(QStandardItem*)));
 
}
void Dialog::reorderTables(QStandardItem *item)
{
    table->sortByColumn(0, Qt::AscendingOrder);
}
void Dialog::addData2Model()
{
    QList<int> rpm;
    QList<int> other;
    rpm<<600<<3000<<5000<<7000<<10000<<14000;
    other<<10<<10<<25<<25<<40<<40;
    for(unsigned char i = 0; i < 6; i++)
    {
        model->setItem(i,0,new QStandardItem(QString::number(rpm.at(i))));
        model->setItem(i,1,new QStandardItem(QString::number(other.at(i))));
    }
    qDebug()<<rpm<<other;
}
Dialog::~Dialog()
{
 
}

#include "dialog.h"

Dialog::Dialog(QWidget *parent)
    : QDialog(parent)
{
    model = new QStandardItemModel(5,2);
    table = new QTableView(this);
    table->setModel(model);
    table->setSortingEnabled(true);
    table->sortByColumn(0);

    addData2Model();
    QVBoxLayout *layout = new QVBoxLayout(this);
    layout->addWidget(table);
    setMinimumSize(300,300);
    setLayout(layout);

    connect(model, SIGNAL(itemChanged(QStandardItem*)),this,SLOT(reorderTables(QStandardItem*)));

}
void Dialog::reorderTables(QStandardItem *item)
{
    table->sortByColumn(0, Qt::AscendingOrder);
}
void Dialog::addData2Model()
{
    QList<int> rpm;
    QList<int> other;
    rpm<<600<<3000<<5000<<7000<<10000<<14000;
    other<<10<<10<<25<<25<<40<<40;
    for(unsigned char i = 0; i < 6; i++)
    {
        model->setItem(i,0,new QStandardItem(QString::number(rpm.at(i))));
        model->setItem(i,1,new QStandardItem(QString::number(other.at(i))));
    }
    qDebug()<<rpm<<other;
}
Dialog::~Dialog()
{

}

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dialog.h

#ifndef DIALOG_H
#define DIALOG_H
 
#include <QtGui>
#include <QDialog>
 
class Dialog : public QDialog
{
    Q_OBJECT
 
public:
    Dialog(QWidget *parent = 0);
    ~Dialog();
public slots:
    void reorderTables(QStandardItem *item);
private:
    QStandardItemModel *model;
    QTableView *table;
    void addData2Model(void);
};
 
#endif // DIALOG_H

#ifndef DIALOG_H
#define DIALOG_H

#include <QtGui>
#include <QDialog>

class Dialog : public QDialog
{
    Q_OBJECT

public:
    Dialog(QWidget *parent = 0);
    ~Dialog();
public slots:
    void reorderTables(QStandardItem *item);
private:
    QStandardItemModel *model;
    QTableView *table;
    void addData2Model(void);
};

#endif // DIALOG_H

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testTableViewSort.pro

#-------------------------------------------------
#
# Project created by QtCreator 2010-08-30T07:46:08
#
#-------------------------------------------------
 
TARGET = testTableViewSort
TEMPLATE = app
 
 
SOURCES += main.cpp\
        dialog.cpp
 
HEADERS  += dialog.h

#-------------------------------------------------
#
# Project created by QtCreator 2010-08-30T07:46:08
#
#-------------------------------------------------

TARGET = testTableViewSort
TEMPLATE = app


SOURCES += main.cpp\
        dialog.cpp

HEADERS  += dialog.h

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Thanks again!

[norobro]

You have to subclass QStandardItem. See here.

[ChrisW67]

Or you can try this if you are not too fussy about display format:

for(unsigned char i = 0; i < 6; i++)
{
    QStandardItem *item;
    item = new QStandardItem;
    // put a QVariant(int) into the DisplayRole rather than a string
    item->setData(rpm.at(i), Qt::DisplayRole);  
    model->setItem(i,0,item);
    model->setItem(i,1,new QStandardItem(QString::number(other.at(i))));
}

for(unsigned char i = 0; i < 6; i++)
{
    QStandardItem *item;
    item = new QStandardItem;
    // put a QVariant(int) into the DisplayRole rather than a string
    item->setData(rpm.at(i), Qt::DisplayRole);  
    model->setItem(i,0,item);
    model->setItem(i,1,new QStandardItem(QString::number(other.at(i))));
}

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