Unsolved TableView how to delete a row

[morteasherah]

Hello to all. I have been using Qt/QtQuick for a project recently and I am stuck on deleting rows from a TableView. Below is the offending code

 TableView {
                anchors.top: aBar.bottom
                anchors.topMargin: 3
                sortIndicatorVisible: true
                frameVisible: false
                Layout.fillWidth: true
                Layout.fillHeight: true
                onSortIndicatorColumnChanged: model.sort(sortIndicatorColumn, sortIndicatorOrder)
                onSortIndicatorOrderChanged: model.sort(sortIndicatorColumn, sortIndicatorOrder)
                id: dataView

                TableViewColumn {
                    role: "Nome"
                    title: "Nome"
                    width: 200
                }

                TableViewColumn {
                    role: "Residenza"
                    title: "Residenza"
                    width: 200
                }

                TableViewColumn {
                    role: "Assicurazione"
                    title: "Assicurazione"
                    width: 200
                }

                TableViewColumn {
                    width: 128
                    resizable: false

                    delegate: RowLayout {
                            anchors.fill: parent
                            clip: true

                            IconButton {
                                iconName: "content/create"
                                onClicked: console.log(styleData.row)
                            }

                            IconButton {
                                iconName: "action/delete"
                                onClicked: {
                                    console.log(styleData.row)
                                    sqlSortedData.eliminaCliente(styleData.row)
                                }
                            }
                    }
                }
                model: sqlSortedData
            }

 Q_INVOKABLE void eliminaCliente(int row) {
        QSqlTableModel *sm = (QSqlTableModel*)sourceModel();
        sm->removeRow(row);
}

Ok, so where is the problem? The code correctly removes the columns that are part of the model, but this isn't the case for the last column, the one where I use the delegate to show the edit and delete buttons.

I cannot figure out why it works this way.

[vladstelmahovsky]

because they are not the part of the model?

[morteasherah]

I thought the same. This implies that TableView redraws everything each time the model changes, right?

I think I don't have a clear view of how TableView instantiates the row objects. If a row is not present in the model during the redraw operation, why the corresponding custom column is instantiated?