QTableView and reimplement data

[estanisgeyer]

Hi,

I have a QTableView and set model QSqlQueryModel. I reimplement the function virtual data( ) and is functioning properly. The problem is that the first line is never applied what determines the method. How can I fix it?

QVariant ChequesRecModel::data(const QModelIndex &idx, int role) const
{
	QVariant v = QSqlQueryModel::data(idx, role);
 
	if ((idx.row()) && (role == Qt::BackgroundRole) &&
			(index(idx.row(), 9, idx.parent()).data().toInt() == 0))
	{
		return QVariant(QColor(Qt::yellow));
	}
 
        return (v);
 
}

QVariant ChequesRecModel::data(const QModelIndex &idx, int role) const
{
	QVariant v = QSqlQueryModel::data(idx, role);
	
	if ((idx.row()) && (role == Qt::BackgroundRole) &&
			(index(idx.row(), 9, idx.parent()).data().toInt() == 0))
	{
		return QVariant(QColor(Qt::yellow));
	}
        
        return (v);

}

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Thanks,

Marcelo E. Geyer
Brazil/RS

[wysota]

What do you mean it is never applied? What exactly do you want to achieve?

[estanisgeyer]

Hi,

See the image below. All lines of the result returned to the QTableView should be the color yellow, but he insists not paint the first line, regardless of my SQL, if order in one way or another.

Thanks,

Marcelo E. Geyer

[mazurekwrc]

idx.row() return 0 in

if ((idx.row()) && (role == Qt::BackgroundRole) &&
            (index(idx.row(), 9, idx.parent()).data().toInt() == 0))

if ((idx.row()) && (role == Qt::BackgroundRole) &&
            (index(idx.row(), 9, idx.parent()).data().toInt() == 0))

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for the first row so I think this is a problem

[estanisgeyer]

Thanks,

My solution:

if ((idx.row() + 1) && (role == Qt::BackgroundRole) &&
                  (index(idx.row(), 9, idx.parent()).data().toInt() == 0))

if ((idx.row() + 1) && (role == Qt::BackgroundRole) &&
                  (index(idx.row(), 9, idx.parent()).data().toInt() == 0))

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[wysota]

(idx.row() + 1) is always true... unless the index is invalid, but there is a dedicated method to check that.

[estanisgeyer]

Yes, you are right, which both took this bit of code, giving me the result I want.

if ((role == Qt::BackgroundRole) &&
                        (index(idx.row(), 9, idx.parent()).data().toInt() == 0))

if ((role == Qt::BackgroundRole) &&
                        (index(idx.row(), 9, idx.parent()).data().toInt() == 0))

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Thanks again,

Marcelo E. Geyer