Sorting a QStringlist issue

[faldzip]

As yogeshgokul said the list is sorted well (lexicographically). The sorting you want you can achieve with custom comparator and use it with qSort():

struct MyLessThan {
	bool operator()(const QString &s1, const QString &s2) const {
		QString st1 = s1.left(s1.indexOf('_'));
		int it1 = s1.right(s1.size() - s1.indexOf('_') - 1).toInt();
		QString st2 = s2.left(s2.indexOf('_'));
		int it2 = s2.right(s2.size() - s2.indexOf('_') - 1).toInt();
		if (st1 < st2)
			return true;
		if (st1 > st2)
			return false;
		if (it1 < it2)
			return true;
		return false;
	}
};

struct MyLessThan {
	bool operator()(const QString &s1, const QString &s2) const {
		QString st1 = s1.left(s1.indexOf('_'));
		int it1 = s1.right(s1.size() - s1.indexOf('_') - 1).toInt();
		QString st2 = s2.left(s2.indexOf('_'));
		int it2 = s2.right(s2.size() - s2.indexOf('_') - 1).toInt();
		if (st1 < st2)
			return true;
		if (st1 > st2)
			return false;
		if (it1 < it2)
			return true;
		return false;
	}
};

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than you can use it like this:

QStringList slist;
slist << "A_8" << "A_2" << "A_10" << "A_24" << "A_1";
MyLessThan le;
qSort(slist.begin(), slist.end(), le);
foreach (const QString &str, slist) {
	ui->plainTextEdit->appendPlainText(str);
}

QStringList slist;
slist << "A_8" << "A_2" << "A_10" << "A_24" << "A_1";
MyLessThan le;
qSort(slist.begin(), slist.end(), le);
foreach (const QString &str, slist) {
	ui->plainTextEdit->appendPlainText(str);
}

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that gives me output:

A_1
A_2
A_8
A_10
A_24