QTableWidget case sensitive sort

[jay]

Thanks a lot for your reply.

I have implemented this. and working fine.

can anyone help me to sort all other item except the first item ( I am having '..' as the first item).

after sorting, it is stayed in the first. but
problem is:
when the sorted column is again clicked, this comes to the bottom.

[Lesiok]

Thanks a lot for your reply.

I have implemented this. and working fine.

can anyone help me to sort all other item except the first item ( I am having '..' as the first item).

after sorting, it is stayed in the first. but
problem is:
when the sorted column is again clicked, this comes to the bottom.

For item '..' operator < must always return true

[wysota]

No, if the sort order is reversed, it has to be the greatest item of all, so it has to return false. I think it's best to reimplement QTableWidget::sortItems().

[aamer4yu]

I guess QTableWidget::sortItems() is not virtual, and cant be reimplemented , isnt it ??

Also for sorting icons, one can associate some role with the item and do sorting based on that role for the icon.

[wysota]

I guess QTableWidget::sortItems() is not virtual, and cant be reimplemented , isnt it ??

Hmm... right. Somehow I was sure there was a "virtual" keyword when I checked the method before posting. Anyway, knowing the item, you can ask it for its QTableWidgetItem::tableWidget() which then can be asked for its QTableWidget::horizontalHeader() which in turn can be asked for QHeaderView::sortIndicatorOrder() and QHeaderView::sortIndicatorSection(). Based on that info you can implement the sorting function in the item.

[jay]

Dear wysota,

Thanks you sooo... much.

tableWidget ()->horizontalHeader () ->sortIndicatorOrder () - this helps me a lot to do proper sorting.

Thank you.

[darksun190]

this topic really help me,
I think post the modified code may help more.

//.h file
class CTableWidgetItem: public QTableWidgetItem
{
    public:
        CTableWidgetItem();
        CTableWidgetItem(const QString &text,int type= Type):QTableWidgetItem( text,type){};
        virtual bool operator<(const QTableWidgetItem &item) const;
};
//.cpp file
CTableWidgetItem::CTableWidgetItem()
{
}
 
bool CTableWidgetItem::operator<(const QTableWidgetItem &item) const
{
    if(text().toUpper()<item.text().toUpper())
        return true;
    else
        return false;
}

//.h file
class CTableWidgetItem: public QTableWidgetItem
{
    public:
        CTableWidgetItem();
        CTableWidgetItem(const QString &text,int type= Type):QTableWidgetItem( text,type){};
        virtual bool operator<(const QTableWidgetItem &item) const;
};
//.cpp file
CTableWidgetItem::CTableWidgetItem()
{
}

bool CTableWidgetItem::operator<(const QTableWidgetItem &item) const
{
    if(text().toUpper()<item.text().toUpper())
        return true;
    else
        return false;
}

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[prasad_N]

If we are using proxy model, the simple one can be sortCaseSensitivity : http://doc.qt.io/qt-4.8/qsortfilterp...nsitivity-prop

[Lesiok]

No, if the sort order is reversed, it has to be the greatest item of all, so it has to return false. I think it's best to reimplement QTableWidget::sortItems().

Oops, of course Wysota You are right.