QAbstractItemModel::rowsInserted notworking

[IknowQT]

	QList<QStandardItem*> items;
	{
		// [Sample Name]
		{
			items.append(new usrStandardItem(strName));			
		}

		// [Conc]
		items.append(new usrStandardItem(fConc));

		// [Abs]
		items.append(new usrStandardItem(fAbs));

		// [Factor]
		items.append(new usrStandardItem(this->m_pQttInfo->fFactor));

		// [Cell]
		items.append(new usrStandardItem(strCell));

		// [Time]
		items.append(new usrStandardItem(QDateTime::currentDateTime().toString("yy-MM-dd HH:mm:ss")));
	}
	m_pDataModel->appendRow(items);

this->connect(this->m_pDataModel, &QAbstractItemModel::rowsInserted, this->m_pDataModel, [this]
	(const QModelIndex& index, int iStart, int iEnd) -> void 
		{
			qDebug() << "QAbstractItemModel::rowsInserted: " << index << iStart << iEnd;
			this->ui.tableWidget->scrollTo(m_pDataModel->index(iStart, 0), QAbstractItemView::PositionAtBottom);
		});

It doesn't mean it can't, but it doesn't go down to the very end. And if you take the index value of the (const QModelIndex& index, int iStart, int iEnd) parameter, QModelIndex(-1,-1,0x0,QObject(0x0)) comes out.

When I do a data insertrow, I want to move to the last row.

[IknowQT]

@Christian-Ehrlicher

	this->connect(this->m_pDataModel, &QAbstractItemModel::rowsInserted, this->m_pDataModel, [this]
	(const QModelIndex& index, int iStart, int iEnd) -> void 
		{
			QTimer::singleShot(0, [=]() { this->ui.tableWidget->scrollToBottom(); });
		});

Strangely, if 10 data is added, it moves to the last row up to 9, but does not move to the 10th row.
I solved this problem with the code I posted.

[Christian Ehrlicher]

@IknowQT said in QAbstractItemModel::rowsInserted notworking:

QModelIndex(-1,-1,0x0,QObject(0x0)) comes out.

Which is correct since you're adding your items to the root item.

When I do a data insertrow, I want to move to the last row.

Why do you use iStart then instead the rowCount() - 1 ?

[IknowQT]

@Christian-Ehrlicher

It's not that I haven't used it. I used row()-1, but it didn't go to the last row.

From 9 to 8 rows work normally, but it does not move to the last row.

[Christian Ehrlicher]

Then please provide a minimal, compilable example to reproduce your problem. Works fine in a similar situation for me. You can also set the vertical slider to max.

[IknowQT]

@Christian-Ehrlicher

	this->connect(this->m_pDataModel, &QAbstractItemModel::rowsInserted, this->m_pDataModel, [this]
	(const QModelIndex& index, int iStart, int iEnd) -> void 
		{
			QTimer::singleShot(0, [=]() { this->ui.tableWidget->scrollToBottom(); });
		});

Strangely, if 10 data is added, it moves to the last row up to 9, but does not move to the 10th row.
I solved this problem with the code I posted.