Qt简单 TreeView实现

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 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 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()); 
 }

转自 http://www.cnblogs.com/sld666666/archive/2011/02/15/1955179.html