Own QTableWidget Class dont add Items

[Fuel]

I have an own QTableWidget Class thats only inherits from QTableWidget. The Problem is that no Items will be displayed in the Table. I have a Database where the Data comes from. And the Querie returns the correct Data. The Method i call to get the Data gets triggered, but there are no Items in my Table. I tested to add a Test QTableWidgetItem but that dont works too. Anyone has a Idea where i can search the Problem? I get no Errors.

WeekPlanWidget::WeekPlanWidget(QWidget *parent) :
    QTableWidget(parent)
{
    this->setColumnCount(3);
    this->resizeColumnsToContents();
    this->setSelectionBehavior(QAbstractItemView::SelectRows);
    this->horizontalHeader()->hide();
    this->setShowGrid(false);
    this->setStyleSheet("QTableView { border: 0px; }");

    mStatus.Undone = QIcon(":/icons/img/undone.png");
    mStatus.Pending = QIcon(":/icons/img/pending.png");
    mStatus.Done  = QIcon(":/icons/img/done.png");
}

void WeekPlanWidget::getTasks(QDate date)
{
    mId.clear();

    Database *db = Database::instance();
    QVector<QList<QString>> data = db->selectTasks(date);

    int i = 0;
    for (QList<QString> row : data)
    {
        mId.append(row.at(0).toInt());

        QDateTime datetime = QDateTime::fromString(row.at(1), "yyyy-MM-dd hh:mm:ss");
        QTableWidgetItem *time = new QTableWidgetItem(datetime.time().toString("hh:mm"));
        QTableWidgetItem *task = new QTableWidgetItem(row.at(2));
        QTableWidgetItem *icon = new QTableWidgetItem();

        if (row.at(3).toInt() == 0)
            icon->setIcon(mStatus.Pending);
        else if (row.at(3).toInt() == 1)
            icon->setIcon(mStatus.Undone);
        else if (row.at(3).toInt() == 2)
            icon->setIcon(mStatus.Done);

        this->setItem(i, 0, time);
        this->setItem(i, 1, task);
        this->setItem(i, 2, icon);
        i++;
    }
}

[joeQ]

@Fuel hi,friend.welcome.

From your snippet. i didn't see any error. could you show some information by below snippet:

void WeekPlanWidget::getTasks(QDate date)
{
    mId.clear();

    Database *db = Database::instance();
    QVector<QList<QString>> data = db->selectTasks(date);

    int i = 0;
    qDebug() << data.count(); ///
    for (QList<QString> row : data)
    {
        qDebug() << "strings : " << row; ///
        mId.append(row.at(0).toInt());

        QDateTime datetime = QDateTime::fromString(row.at(1), "yyyy-MM-dd hh:mm:ss");
        QTableWidgetItem *time = new QTableWidgetItem(datetime.time().toString("hh:mm"));
        QTableWidgetItem *task = new QTableWidgetItem(row.at(2));
        QTableWidgetItem *icon = new QTableWidgetItem();

        if (row.at(3).toInt() == 0)
            icon->setIcon(mStatus.Pending);
        else if (row.at(3).toInt() == 1)
            icon->setIcon(mStatus.Undone);
        else if (row.at(3).toInt() == 2)
            icon->setIcon(mStatus.Done);

        this->setItem(i, 0, time);
        this->setItem(i, 1, task);
        this->setItem(i, 2, icon);
        qDebug("add row ok--%d",i);
        i++;
    }
}

[Fuel]

@joeQ said in Own QTableWidget Class dont add Items:

qDebug("add row ok--%d",i);

The Output is

add row ok--0
add row ok--1

so he find my 2 Entrys from my Database. The String of the Row are correct. He shows the Data.

[joeQ]

@Fuel hi,

^-^!!!, i know where you wrong. you didn't write insertRow

Here are my code from my project

QTableWidgetItem *item[COLUMNS];

    int row = rowCount();
    insertRow(row); /// First to insert new row

    item[Name] = new QTableWidgetItem(QVariant::String);
    item[Name]->setFlags(item[Name]->flags() & ~Qt::ItemIsEditable);
    item[Name]->setText(codename);
    setItem(row,Name,item[Name]);

    item[Content] = new QTableWidgetItem(QVariant::String);
    item[Content]->setFlags(item[Content]->flags() & ~Qt::ItemIsEditable);
    item[Content]->setText(QString(codedata));
    item[Content]->setData(Qt::UserRole,QVariant(codedata));
    setItem(row,Content,item[Content]);

    item[Coordinate] = new QTableWidgetItem(QVariant::String);
    item[Coordinate]->setFlags(item[Coordinate]->flags() & ~Qt::ItemIsEditable);
    item[Coordinate]->setText(coornidate);
    setItem(row,Coordinate,item[Coordinate]);

    item[Operator] = new QTableWidgetItem(QVariant::Icon);
    item[Operator]->setFlags(item[Operator]->flags() & ~Qt::ItemIsEditable);
    setItem(row,Operator,item[Operator]);

[VRonin]

Post-solve comment. Given what you are doing, wouldn't a QSqlQueryModel+QTableView+a very simple QStyledItemDelegate for the icons be easier than this?

[Fuel]

Yes it worked thanks to all.