Qt如何在QtableWidget中选中状态复选框 最近，我发现了复选框放置在QTable控件项目中间的方式。 然而，我不知道如何检查按钮是否被点击的状态。 你能告诉我如何检查按钮状态吗

下面是我发现的代码：

QWidget *pWidget = new QWidget();
QCheckBox *pCheckBox = new QCheckBox();
QHBoxLayout *pLayout = new QHBoxLayout(pWidget);
pCheckBox->setCheckState(Qt::Checked);
pLayout->addWidget(pCheckBox);
pLayout->setAlignment(Qt::AlignCenter);
pLayout->setContentsMargins(0,0,0,0);
pWidget->setLayout(pLayout);
ui->tableWidget2->setCellWidget(2,2, pWidget);

---

虽然这已经很晚了，但您可以这样解决：

auto field = ui->tableWidget2->cellWidget(2, 2, pWidget);

std::cout << qobject_cast<QCheckBox*>(field)->isChecked() << std::endl;

int row...;int column...;
...
QTableWidgetItem *checkBoxItem = new QTableWidgetItem();
checkBoxItem->setCheckState(Qt::Unchecked);
ui->Table->setItem(row, column, checkBoxItem);

void MainWindow::on_Table_cellClicked(int row, int column)
{
    QTableWidgetItem *checkBoxState = ui->Table->item(row, column);

    if(ui->Table->item(row,column)->checkState())
    {
        checkBoxState->setCheckState(Qt::Unchecked);
        ui->Table->setItem(row, column, checkBoxState);
    }
    else
    {
        checkBoxState->setCheckState(Qt::Checked);
        ui->Table->setItem(row, column, checkBoxState);
    }
}

auto-field=ui->tableWidget2->cellWidget（2,2，pWidget）；
std:：cout isChecked（）我假设您在QWidgetTable中创建了如下复选框：

auto field = ui->tableWidget2->cellWidget(2, 2, pWidget);

std::cout << qobject_cast<QCheckBox*>(field)->isChecked() << std::endl;

int row...;int column...;
...
QTableWidgetItem *checkBoxItem = new QTableWidgetItem();
checkBoxItem->setCheckState(Qt::Unchecked);
ui->Table->setItem(row, column, checkBoxItem);

void MainWindow::on_Table_cellClicked(int row, int column)
{
    QTableWidgetItem *checkBoxState = ui->Table->item(row, column);

    if(ui->Table->item(row,column)->checkState())
    {
        checkBoxState->setCheckState(Qt::Unchecked);
        ui->Table->setItem(row, column, checkBoxState);
    }
    else
    {
        checkBoxState->setCheckState(Qt::Checked);
        ui->Table->setItem(row, column, checkBoxState);
    }
}

您可以在另一个函数中检查与小部件对应的项目的状态，如下所示：

auto field = ui->tableWidget2->cellWidget(2, 2, pWidget);

std::cout << qobject_cast<QCheckBox*>(field)->isChecked() << std::endl;

int row...;int column...;
...
QTableWidgetItem *checkBoxItem = new QTableWidgetItem();
checkBoxItem->setCheckState(Qt::Unchecked);
ui->Table->setItem(row, column, checkBoxItem);

void MainWindow::on_Table_cellClicked(int row, int column)
{
    QTableWidgetItem *checkBoxState = ui->Table->item(row, column);

    if(ui->Table->item(row,column)->checkState())
    {
        checkBoxState->setCheckState(Qt::Unchecked);
        ui->Table->setItem(row, column, checkBoxState);
    }
    else
    {
        checkBoxState->setCheckState(Qt::Checked);
        ui->Table->setItem(row, column, checkBoxState);
    }
}

这方面有进展吗？等等，为什么要创建一个新的
QTableWIdgetItem
？更改
QTableWIdgetItem*checkBoxState=new QTableWIdgetItem（）至
QTableWidgetItem*checkBoxState=ui->表格->项目（行、列）
您能告诉我们如何检查复选框或文本字段等包含的单元格类型吗