itemDoubleClicked and cellDoubleClicked.What's the difference between the two?

[canid]

QTableWidget: : itemDoubleClicked and QTableWidget: : cellDoubleClicked.What's the difference between the two?

[Christian Ehrlicher]

itemDoubleClicked is only emitted if there is an item set for this cell.

[canid]

Does a cell differ from an item in not having and having content?

[SGaist]

Hi,

A cell can be empty or contain an item hence the difference.

[mrjj]

Hi
If you have a look here
https://wiki.qt.io/How_to_Use_QTableWidget

you see we tell how many rows/columns
m_pTableWidget->setRowCount(10);
m_pTableWidget->setColumnCount(3);

so before we put a QTableWidgetItem in all those cells, they are empty and will return a nullptr
if you ask for the item.
So yes, an empty cell is not just an item without text. its itemless.