24.QTableView函数使用,右击菜单实现

QTableView view(this);
QStandardItemModel model(this);

model.setHorizontalHeaderItem(0,new QStandardItem("Name"));
model.setHorizontalHeaderItem(1,new QStandardItem("Sex"));
model.setHorizontalHeaderItem(2,new QStandardItem("Age"));
model.horizontalHeaderItem(0)->setFont(QFont("Helvetica",20,50));   //设置标题字体

model.setVerticalHeaderItem(0,new QStandardItem("No.1"));
model.setVerticalHeaderItem(1,new QStandardItem("No.2"));
model.setVerticalHeaderItem(2,new QStandardItem("No.3"));

QPixmap  pix(":user.png");
pix =pix.scaled(24,24,Qt::KeepAspectRatio);
QStandardItem *itemA=new QStandardItem();
itemA->setData(pix,Qt::DecorationRole);                        //设置条目图标
itemA->setData("A",Qt::DisplayRole);
itemA->setData("A:tooltip",Qt::ToolTipRole);
itemA->setData(QFont("宋体",12,QFont::Bold,true),Qt::FontRole); //设置条目字体
itemA->setData(Qt::AlignCenter,Qt::TextAlignmentRole);         //设置条目中心对齐

 QLinearGradient linearGradient(0,0,100,20);
 linearGradient.setColorAt(0.2, Qt::white);
 linearGradient.setColorAt(0.6, Qt::green);
 linearGradient.setColorAt(1.0, Qt::black);
 itemA->setData(QBrush(linearGradient),Qt::BackgroundRole);    //设置条目背景色(为渐变色)

   model.setItem(0,0,itemA);
   model.setItem(0,1,new QStandardItem("B"));
   model.setItem(1,0,new QStandardItem("C"));
   model.item(0,1)->setTextAlignment(Qt::AlignCenter);  //设置条目居中对齐

model.sort(0,Qt::DescendingOrder);

view.sortByColumn(0);

view.setSortingEnabled(true);

view.setAutoScroll

view->horizontalHeader()->setHighlightSections(false);

view.horizontalHeader()->setResizeMode(QHeaderView::Fixed);

view.verticalHeader()->setResizeMode(QHeaderView::Fixed);

view.setSelectionMode(QAbstractItemView::NoSelection);

view.verticalHeader()->hide();

view.setSelectionMode(QAbstractItemView::SingleSelection);

                       //设置选择模式,表示只能选中单个

view.setSelectionBehavior(QAbstractItemView::SelectRows);

//设置选择行为,表示只能选择一行(也可以设置为列,或者单个Item项目)

view.setEditTriggers(QAbstractItemView::NoEditTriggers);

view.horizontalHeader()->setVisible(false);
view.verticalHeader()->setVisible(false);

view.setShowGrid(false);

view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

view.setColumnWidth(0,50);            //设置column0(第1列)的宽度为50
view.setRowHeight(0,30);               //设置row0(第1行)的高度为30
view.resizeRowsToContents();    //更据当前内容自动调整行距
view.resizeColumnsToContents(); //更据当前内容自动调整列距

view.setFocusPolicy(Qt::NoFocus);

qDebug()<<view.currentIndex().row();  //获取行号,如果为-1,表示无效

qDebug()<<view.currentIndex().column();//获取列号,如果为-1,表示无效

文章来源：https://www.cnblogs.com/lifexy/p/9155708.html

原文地址：https://www.cnblogs.com/xiongjim/p/9674155.html