关于qml的tableview checkbox 全选 - QTCN开发网

TableView{
        id:tableview;
        anchors.fill: parent;
        model:tabModel;
        frameVisible:false;
        horizontalScrollBarPolicy: Qt.ScrollBarAsNeeded
        verticalScrollBarPolicy: Qt.ScrollBarAsNeeded
        TableViewColumn{
            role:"checked";
            title: "";
            delegate: Rectangle {
                CheckBox {
                    anchors.centerIn: parent;
                    checked: styleData.value;
                    onClicked: {
                        console.log(styleData.row);
                        tabModel.setStatusByRow(styleData.row, checked);
                    }
                }
            }
        }
        TableViewColumn{role:"id"; title: "ID"; movable: false;horizontalAlignment: Text.AlignHCenter}
        rowDelegate: Rectangle{
            height: 40
        }
        headerDelegate: Rectangle{
            implicitWidth: 10
            implicitHeight: 40
            Text{
                anchors.centerIn: parent;
                text: styleData.value
                color: styleData.pressed ?"#1AB2B5" : "#707070"
                font{
                    family: qsTr("Arial");
                    pixelSize: 14;
                    bold: true
                }
                elide: Text.ElideRight
            }
            CheckBox{
                property bool myPressed: styleData.pressed
                anchors.centerIn: parent
                visible: styleData.column === 0
                activeFocusOnPress:true;
                onMyPressedChanged: {
                    if(myPressed && styleData.column === 0)
                    {
                        checked = !checked;
                        tabModel.selectAll(checked);
                    }
                }
            }
        }
    }

QVariant TableModel::data(const QModelIndex &index, int role) const
{
    if (!index.isValid()/* || index.row() >= m_data.size()*/)
        return QVariant();
    if(role == Qt::CheckStateRole) {
        return m_data.at(index.row())->checkstate;
    }
    if(role == Qt::UserRole)
    {
        return m_data.at(index.row())->id;
    }
    return QVariant();
}