Placing TableWidget Header Labels at runtime

Driftwood

When I use this:

ui->tableWidget->horizontalHeaderItem( 0 )->setText( "Last" );

to set my tablewidget header at column 0, I get a seg fault.
However, if I do this:

QTableWidgetItem* col0 = new QTableWidgetItem(QString("L Name"),QTableWidgetItem::Type);
ui->tableWidget->setHorizontalHeaderItem(0,col0);

it works w/out issue.

Thing is, I'm sure I was doing it the first way a year or so back. Or am I just doing it wrong? The second way I show here is really kind of silly in its long-winded approach just to Label a column.

Christian Ehrlicher

@Driftwood said in Placing TableWidget Header Labels at runtime:

Or am I just doing it wrong?

You did not read the documentation:

"Returns the horizontal header item for column, column, if one has been set; otherwise returns nullptr."

mrjj

Hi
The header uses items also - so they must be allocated.

But if you find it a bit clunky there is also

setHorizontalHeaderLabels(const QStringList &labels)

aka

setHorizontalHeaderLabels(QStringList() << "L1" << "L2");

for a shorter version.

Driftwood

@Christian-Ehrlicher - Thank you.

@mrjj - I found the QStringList on SO and already have it in place.

Thank you both for your help.