How do I modify the data of a node in a qtreeview

[canid]

How do I modify the data of a node in a qtreeview？thanks

[JonB]

@canid
What do you mean? Your QTreeView has an associated model() (https://doc.qt.io/qt-5/qabstractitemview.html#model), that is where the data comes from and needs to be modified. Or are you asking about how you do it interactively from the treeview, or what?

[canid]

@jonb
I found that I could only modify the data in a single column of a row, and there was no way to modify the multi-column data in a row of the treeview

[JKSH]

@canid said in How do I modify the data of a node in a qtreeview:

I found that I could only modify the data in a single column of a row, and there was no way to modify the multi-column data in a row of the treeview

Get the QModelIndex of the cell that you want to modify (for example, when you click on a cell the QAbstractItemView::clicked(QModelIndex) signal is emitted)

Once you have the index, call QAbstractItemModel::setData(QModelIndex, QVariant)