QTableWidget sorting

[abrou]

Hello, I am making a QTableWidget which is working nicely. I want the user to be able to sort each column, which is also working, but I don't like how it sorts columns with numbers. It will sort the numbers from 0 to 10 like this:

0
1
10
2
3
4
5
6
7
8
9

But I want it like this:

0
1
2
3
4
5
6
7
8
9
10

enum Qt::SortOrder just seems to have AscendingOrder and DescendingOrder. Is there anyway to achieve what I want?

Thanks!

[jpn]

Set the data as numbers instead of as text:


int i = 0;
QTableWidgetItem* item = ...
//item->setText(QString::number(i)); // <-- no
item->setData(Qt::DisplayRole, i); // <-- yes

[zeFree]

I was facing a similar problem, just a bit more complex than this one.
In a QTableWidget, in some columns I had simple numeric values and in others I wanted to show them with a " %" appended.
e.g. "65.32" -----> "65.32 %"
But when sorting I wanted the cells to be sorted numerically.

Thus I subclassed the QTableWidgetItem and then implemented the "<" operator to sort numbers and not strings.


class MyTableWidgetItem : public QTableWidgetItem
{
if(text().contains("%"))
{
QString str1 = text();
str1.chop(2);
QString str2 = other.text();
str2.chop(2);
return str1.toDouble() < str2.toDouble();
}
else
{
return text().toDouble() < other.text().toDouble();
}
}

Then while populating the table I passed instances of my custom items instead of the generic ones.
I learnt the basics for this technique from here (http://stackoverflow.com/questions/7848683/how-to-sort-datas-in-qtablewidget).