QListWidget's editItem() outputs "edit: editing failed" - c++

Question

I am attempting to add an item to a QListWidget, select that item, and then begin editing the new item.
The item gets added, and it gets selected, but the line is not brought into a QLineEdit, or whatever it would attempt to use.
Here's the code for my widget, with the relevant code under the connect for "m_addButton":
Sequencer::Sequencer(QWidget* parent) :
QWidget(parent)
{
m_list = new QListWidget();
m_addButton = new QPushButton("Add Step");
m_removeButton = new QPushButton("Remove Step");
connect(m_addButton, &QPushButton::clicked, this, [&]()
{
m_list->addItem(""); // This part works,
m_list->setCurrentItem(m_list->item(m_list->count() - 1)); // This part works...
m_list->editItem(m_list->currentItem()); // This part puts out "edit: editing failed" into the console.
});
connect(m_removeButton, &QPushButton::clicked, this, [&]()
{
if (!m_list->selectedItems().isEmpty())
{
qDeleteAll(m_list->selectedItems());
}
});
QHBoxLayout* hLayout = new QHBoxLayout();
hLayout->addStretch();
hLayout->addWidget(m_addButton);
hLayout->addWidget(m_removeButton);
QVBoxLayout* vLayout = new QVBoxLayout();
vLayout->addWidget(m_list);
vLayout->addLayout(hLayout);
setLayout(vLayout);
}

Answer 1

By default a QListWidgetItem is not editable so if you want it to be, you must enable the Qt::ItemIsEditable flag:
connect(m_addButton, &QPushButton::clicked, this, [&]()
{
QListWidgetItem *item = new QListWidgetItem;
item->setFlags(item->flags() | Qt::ItemIsEditable); # enable
m_list->addItem(item);
m_list->setCurrentItem(item);
m_list->editItem(item);
});