Update yAxis->setLabel() from another button.

[mangekoyu]

I need update yAxis->setLabel() on my qcustomplot.
When user push celsius button. label should update as "C" when user push Fahrenheit buttonç label should update as "F".

how can I do that? Here is my code I tried.

void MainWindow::on_celsiusBtn_clicked()
{
    
  
    ui->widgetChart->yAxis->setLabel("C");

   }


void MainWindow::on_fahrenheitBtn_clicked()
{
 
    ui->widgetChart->yAxis->setLabel("F");

}

[JonB]

@mangekoyu
And? Code to update the buttons looks fine....

[mangekoyu]

There is no update. When I click to button I can not see any changes

[JonB]

@mangekoyu

• Have you put a qDebug() statement into each one to see whether it is being called? That is the first thing to do.
• Have you done a connect() statement to connect buttons to these slots?
• Or, are you relying on auto-connection-by-name-of-slot-method?