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1. table_widget->setColumnCount(4); //设置列数
   
2.   table_widget->horizontalHeader()->setDefaultSectionSize(150); 
   
3.   table_widget->horizontalHeader()->setClickable(false); //设置表头不可点击（默认点击后进行排序）
   
4.  
5.   //设置表头内容
6.   QStringList header;
7.   header<<tr("name")<<tr("last modify time")<<tr("type")<<tr("size");
8.   table_widget->setHorizontalHeaderLabels(header);
9.  
10.   //设置表头字体加粗
11.   QFont font = this->horizontalHeader()->font();
    
12.   font.setBold(true);
13.   table_widget->horizontalHeader()->setFont(font);
14.  
15.   table_widget->horizontalHeader()->setStretchLastSection(true); //设置充满表宽度
    
16.   table_widget->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
17.   table_widget->verticalHeader()->setDefaultSectionSize(10); //设置行距
    
18.   table_widget->setFrameShape(QFrame::NoFrame); //设置无边框
    
19.   table_widget->setShowGrid(false); //设置不显示格子线
    
20.   table_widget->verticalHeader()->setVisible(false); //设置垂直头不可见
    
21.   table_widget->setSelectionMode(QAbstractItemView::ExtendedSelection); //可多选（Ctrl、Shift、 Ctrl+A都可以）
    
22.   table_widget->setSelectionBehavior(QAbstractItemView::SelectRows); //设置选择行为时每次选择一行
    
23.   table_widget->setEditTriggers(QAbstractItemView::NoEditTriggers); //设置不可编辑
    
24.   table_widget->horizontalHeader()->resizeSection(0,150); //设置表头第一列的宽度为150
    
25.   table_widget->horizontalHeader()->setFixedHeight(25); //设置表头的高度
    
26.   table_widget->setStyleSheet("selection-background-color:lightblue;"); //设置选中背景色
    
27.   table_widget->horizontalHeader()->setStyleSheet("QHeaderView::section{background:skyblue;}"); //设置表头背景色
    
28.  
29.   //设置水平、垂直滚动条样式
30.   table_widget->horizontalScrollBar()->setStyleSheet("QScrollBar{background:transparent; height:10px;}"
31.   "QScrollBar::handle{background:lightgray; border:2px solid transparent; border-radius:5px;}"
32.   "QScrollBar::handle:hover{background:gray;}"
33.   "QScrollBar::sub-line{background:transparent;}"
34.   "QScrollBar::add-line{background:transparent;}");
35.   table_widget->verticalScrollBar()->setStyleSheet("QScrollBar{background:transparent; width: 10px;}"
36.   "QScrollBar::handle{background:lightgray; border:2px solid transparent; border-radius:5px;}"
37.   "QScrollBar::handle:hover{background:gray;}"
38.   "QScrollBar::sub-line{background:transparent;}"
39.   "QScrollBar::add-line{background:transparent;}");

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1. #include "no_focus_delegate.h"
   
2.   void NoFocusDelegate::paint(QPainter* painter, const QStyleOptionViewItem & option, const QModelIndex &index) const
   
3.   {
4.      QStyleOptionViewItem itemOption(option);
5.      if (itemOption.state & QStyle::State_HasFocus)
   
6.      {
7.         itemOption.state = itemOption.state ^ QStyle::State_HasFocus;
   
8.      }
9.      QStyledItemDelegate::paint(painter, itemOption, index);
   
10.   }

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1. table_widget->setItemDelegate(new NoFocusDelegate());

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1. //点击表时不对表头行光亮（获取焦点） 
   
2.    table_widget->horizontalHeader()->setHighlightSections(false);

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1. int row_count = table_widget->rowCount(); //获取表单行数
   
2.   table_widget->insertRow(row_count); //插入新行
   
3.   QTableWidgetItem *item = new QTableWidgetItem();
   
4.   QTableWidgetItem *item1 = new QTableWidgetItem();
   
5.   QTableWidgetItem *item2 = new QTableWidgetItem();
   
6.   QTableWidgetItem *item3 = new QTableWidgetItem();
   
7.   //设置对应的图标、文件名称、最后更新时间、对应的类型、文件大小
8.   item->setIcon(icon); //icon为调用系统的图标，以后缀来区分 
   
9.   item->setText(name);
10.   item1->setText(last_modify_time);
11.   item2->setText(type); //type为调用系统的类型，以后缀来区分
    
12.   item3->setText(size);
13.   table_widget->setItem(row_count, 0, item);
    
14.   table_widget->setItem(row_count, 1, item1); 
    
15.   table_widget->setItem(row_count, 2, item2);
    
16.   table_widget->setItem(row_count, 3, item3);
    
17.   //设置样式为灰色
18.   QColor color("gray");
19.   item1->setTextColor(color);
20.   item2->setTextColor(color);
21.   item3->setTextColor(color);

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1. table_widget->insertRow(row); //插入新行 row为插入的位置

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1. connect(horizontalHeader(), SIGNAL(sectionClicked(int)), this, SLOT(onHeaderClicked(int)));

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1. void TableWidget::onHeaderClicked(int column)
   
2. {
3.     //column为所点击的表头的某列
4. }

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1. //获得当前节点并获取编辑名称
2.    QTableWidgetItem *item = table_widget->item(edit_row, 0); //edit_row为想要编辑的行号
   
3.    table_widget->setCurrentCell(edit_row, 0);
   
4.    table_widget->openPersistentEditor(item); //打开编辑项
   
5.    table_widget->editItem(item);
6.  
7.    //关闭编辑项
8.    table_widget->closePersistentEditor(item);

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1. void TableWidget::createActions()
2.   {
3.     //创建菜单项
4.     pop_menu = new QMenu();
   
5.     action_name = new QAction(this);
   
6.     action_size = new QAction(this);
   
7.     action_type = new QAction(this);
   
8.     action_date = new QAction(this);
   
9.     action_open = new QAction(this); 
   
10.     action_download = new QAction(this);
    
11.     action_flush = new QAction(this);
    
12.     action_delete = new QAction(this);
    
13.     action_rename = new QAction(this);
    
14.     action_create_folder = new QAction(this);
    
15.  
16.     action_open->setText(QString("打开"));
17.     action_download->setText(QString("下载"));
18.     action_flush->setText(QString("刷新"));
19.     action_delete->setText(QString("删除"));
20.     action_rename->setText(QString("重命名"));
21.     action_create_folder->setText(QString("新建文件夹"));
22.     action_name->setText(QString("名称"));
23.     action_size->setText(QString("大小"));
24.     action_type->setText(QString("项目类型"));
25.     action_date->setText(QString("修改日期"));
26.    
27.     //设置快捷键
28.     action_flush->setShortcut(QKeySequence::Refresh);
29.  
30.     //设置文件夹图标
31.     action_create_folder->setIcon(icon);
32.     QObject::connect(action_create_folder, SIGNAL(triggered()), this, SLOT(createFolder()));
    
33. }

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1. void TableWidget::contextMenuEvent(QContextMenuEvent *event)
   
2.   {
3.     pop_menu->clear(); //清除原有菜单
   
4.     QPoint point = event->pos(); //得到窗口坐标
   
5.     QTableWidgetItem *item = this->itemAt(point);
   
6.     if(item != NULL)
   
7.     {
8.        pop_menu->addAction(action_download);
9.        pop_menu->addAction(action_flush);
10.        pop_menu->addSeparator();
11.        pop_menu->addAction(action_delete);
12.        pop_menu->addAction(action_rename);
13.        pop_menu->addSeparator();
14.        pop_menu->addAction(action_create_folder);
15.        sort_style = pop_menu->addMenu("排序");
    
16.        sort_style->addAction(action_name);
17.        sort_style->addAction(action_size);
18.        sort_style->addAction(action_type);
19.        sort_style->addAction(action_date);
20.       
21.        //菜单出现的位置为当前鼠标的位置
22.        pop_menu->exec(QCursor::pos());
23.        event->accept();
24.     } 
    
25.  }