QT TreeView

转帖地址：http://www.cnblogs.com/sld666666/archive/2011/02/15/1955179.html

 

这篇文章讲述如何实现如下的一个treeView.

首先设置treeView的外框， 大小， model等

QStandardItemModel *goodsModel = new QStandardItemModel(0, 4,this); ui.treeView_->setColumnWidth(0,50); ui.treeView_->setColumnWidth(1,200); ui.treeView_->setColumnWidth(2,200); ui.treeView_->setColumnWidth(3,200); goodsModel->setHeaderData(0, Qt::Horizontal, tr("No")); goodsModel->setHeaderData(1, Qt::Horizontal, tr("name")); goodsModel->setHeaderData(2, Qt::Horizontal, tr("value1")); goodsModel->setHeaderData(3, Qt::Horizontal, tr("value2")); ui.treeView_->setModel(goodsModel);

然后把数据填充到item中

for (int i = 0; i < 4; ++i) { QList<QStandardItem *> items; for (int i = 0; i < 3; ++i) { QStandardItem *item = new QStandardItem(QString("item %0").arg(i)); if (0 == i) item->setCheckable(true); items.push_back(item); } goodsModel->appendRow(items); for (int i = 0; i < 4; ++i) { QList<QStandardItem *> childItems; for (int i = 0; i < 3; ++i) { QStandardItem *item = new QStandardItem(QString("%0").arg(i)); if (0 == i) item->setCheckable(true); childItems.push_back(item); } items.at(0)->appendRow(childItems); } }

第三步设置treeview 能够被多选

ui.treeView_ -> setSelectionMode(QAbstractItemView::ExtendedSelection);

第三步设置右键选择菜单

void TreeView::contextMenuEvent(QContextMenuEvent *event) 

{ 

QMenu *pMenu = new QMenu(ui.treeView_); 

QAction* buildItem = pMenu->addAction(tr("build")); 

pMenu->exec(QCursor::pos()); 

}