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()); 

}