Qt动态生成对话框

动态生成对话框，记录如下：

 

    QDialog *submitDlg= newQDialog(this);
    QLabel *label = new QLabel(tr("确认提交修改到数据库吗？"),submitDlg);
    QPushButton *ok_Btn = new QPushButton(tr("确认"),submitDlg);
    QPushButton *cancel_Btn = new QPushButton(tr("取消"),submitDlg);
    QGridLayout *gridLayout = new QGridLayout(submitDlg);
    gridLayout->setColumnStretch(0, 1);
    gridLayout->setColumnStretch(1, 4);
    gridLayout->setColumnStretch(2, 1);
    gridLayout->setColumnStretch(3, 4);
    gridLayout->setColumnStretch(4, 1);
    gridLayout->setMargin(15);
    gridLayout->setColumnMinimumWidth(2, 15);
    gridLayout->setRowMinimumHeight(2,15);
    gridLayout->addWidget(label,0,0,2,5);
    gridLayout->addWidget(ok_Btn,1,1,1,2);
    gridLayout->addWidget(cancel_Btn,1,3,1,2);
    submitDlg->setLayout(gridLayout);
    submitDlg->resize(200,200);
    submitDlg->setWindowTitle(tr("确认提交到数据库？"));