Qt入门－表格类QTableWidget

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

    示例：

1. QTableWidget *table = new QTableWidget(4,2); //新建一4行2列的表格
4. //设置表格行标题
5. QStringList headerLabels;
6. headerLabels << "C1" << "C2";
7. table->setHorizontalHeaderLabels(headerLabels);
10. //设置表格行标题的对齐方式
11. table->horizontalHeader()->setDefaultAlignment(Qt::AlignLeft);
13. //设置行表题
14. QStringList rowLabels;
15. rowLabels << "Line1" << "Line2" << "Line3" << "Line4";
16. table->setVerticalHeaderLabels(rowLabels);
19. //设置每一行的高度
20. for(int i = 0; i < 4; i++)
21. table->setRowHeight(i, 22);
23. //自动调整最后一列的宽度使它和表格的右边界对齐
24. table->horizontalHeader()->setStretchLastSection(true);
26. //设置表格的选择方式
27. table->setSelectionBehavior(QAbstractItemView::SelectItems);
29. //设置编辑方式
30. table->setEditTriggers(QAbstractItemView::DoubleClicked);
32. //设置表格的内容
33. for (int row = 0; row < 4; ++row)
34. {
35. QTableWidgetItem *item0, *item1;
36. item0 = new QTableWidgetItem;
37. item1 = new QTableWidgetItem;
39. QString txt = QString("%1").arg(row + 1);
40. item0->setText(txt);
41. table->setItem(row, 0, item0);
43. txt = QString("%1").arg((row + 1) * 2);
44. item1->setText(txt);
45. table->setItem(row, 1, item1);
47. }
49. //增加一行
50. table->setRowCount(5);
51. QTableWidgetItem *vHeader5 = new QTableWidgetItem("Line5");
52. table->setVerticalHeaderItem(4, vHeader5);
54. QTableWidgetItem *item5_0, *item5_1;
55. item5_0 = new QTableWidgetItem;
56. item5_1 = new QTableWidgetItem;
57. item5_0->setText(QString("%1").arg(5));
58. item5_1->setText(QString("%1").arg(5 * 2));
59. table->setItem(4, 0, item5_0);
60. table->setItem(4, 1, item5_1);

界面中的表格如图：