Basic QVector application

Uberlinc

Hi,
Trying to do a basic QVector application to populate a QListWidget.

I have successfully populated and printed the contents of a QVector in a console app, but don't quite get it with a QtWidgets application.

Is there something glaringly obvious that I'm doing wrong?

Please see screenshots:

Thanks in advance.

JonB

@Uberlinc
This has nothing to do with QVectors, or widgets. It's basic C++.

At line #28MainWindow::listVector is a reference to a static member of MainWindow, which is not what you have. You need to take whatever your instance of MainWindow is, e.g. perhaps you have a MainWindow mainWindow = new MainWindow(...), and reference mainWindow->listVector.

At line #35, there is no listVector to reference. You mean to either reference mainWindow->listVector, or void printVector is intended to be a member method of class MainWindow. Similarly for the ui.

Forget about vectors for a while. Sort out your class/member/instance references.

Uberlinc

Okay, thanks..
I'm a bit rusty at both but trying to put it all together.

mrjj

@Uberlinc

Hi
in this case
The main issue is that you do include loadvec/printVec as members
but the .cpp code you show you forgot
MainWindow:: in front so compiler thinks they are just global functions.

Should be
void MainWindow::loadVector() {
...
}

then it works :)