Qt入门－表格类QTableWidget

原文 ：http://blog.csdn.net/xgbing/article/details/7774737

 表格是GUI中常用的控件，在Qt中，常用的表格类是QTableWidget。

    示例：

QTableWidget *table = new QTableWidget(4,2);  //新建一4行2列的表格


//设置表格行标题
QStringList headerLabels;
headerLabels << "C1" << "C2";
table->setHorizontalHeaderLabels(headerLabels);


//设置表格行标题的对齐方式
table->horizontalHeader()->setDefaultAlignment(Qt::AlignLeft);

//设置行表题
QStringList rowLabels;
rowLabels << "Line1" << "Line2" << "Line3" << "Line4";
table->setVerticalHeaderLabels(rowLabels);


//设置每一行的高度
for(int i = 0; i < 4; i++)
    table->setRowHeight(i, 22);

//自动调整最后一列的宽度使它和表格的右边界对齐
table->horizontalHeader()->setStretchLastSection(true);

//设置表格的选择方式
table->setSelectionBehavior(QAbstractItemView::SelectItems);

//设置编辑方式
table->setEditTriggers(QAbstractItemView::DoubleClicked);

//设置表格的内容
for (int row = 0; row < 4; ++row)
{
    QTableWidgetItem *item0, *item1;
    item0 = new QTableWidgetItem;
    item1 = new QTableWidgetItem;

    QString txt = QString("%1").arg(row + 1);
    item0->setText(txt);
    table->setItem(row, 0, item0);

    txt = QString("%1").arg((row + 1) * 2);
    item1->setText(txt);
    table->setItem(row, 1, item1);

}

//增加一行
table->setRowCount(5);
QTableWidgetItem *vHeader5 = new QTableWidgetItem("Line5");
table->setVerticalHeaderItem(4, vHeader5);

QTableWidgetItem *item5_0, *item5_1;
item5_0 = new QTableWidgetItem;
item5_1 = new QTableWidgetItem;
item5_0->setText(QString("%1").arg(5));
item5_1->setText(QString("%1").arg(5 * 2));
table->setItem(4, 0, item5_0);
table->setItem(4, 1, item5_1);

界面中的表格如图：