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

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

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[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();
	}
}

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();
	}
}

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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.