Qt简单 TreeView实现

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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());  }

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