how to remove Item in Qtablewidget?

ForestPoem

Hi. Guys!

My source code ↓

ui->tableWidget->setItem(0,0,new QTableWidgetItem(QString::number(3)));
ui->tableWidget->item(0,0)->setTextAlignment(Qt::AlignCenter);
My approach :

delete ui->tableWidget->item(0,7);

If this memory is free?

If not, let me know any other method.

Ratzz

@ForestPoem
Is this the same Question?

ForestPoem

@Ratzz
Thanks, but
That's right, but that's the not answer.
i'dont know item.

I call the function each time the button clicked.

connect(ui->tableWidget, SIGNAL(clicked()), this, SLOT(settarget()));

void TargetSet::settarget(){
for(int i=0;i<ui->tableWidget->rowCount();i++){
ui->tableWidget->setItem(i,0,new QTableWidgetItem(QString::number(i));
ui->tableWidget->item(i,0)->setTextAlignment(Qt::AlignCenter);
}
}

When you do this, it will be a memory leak.
For this reason, I would like to know the remove

SGaist

Hi,

Why not just update the text of your items ?

Otherwise takeItem + delete on the item returned.

ForestPoem

@SGaist

thanks, you say this?

delete ui->tableWidget->takeItem(row,col);

or

ui->tableWidget->item(row,col)->setText("New text");

This method had not thought of.

Thank you!!

SGaist

Using setText will avoid useless delete/allocation of items.