Qt creator 将QTreeView保存XML
时间: 2023-08-13 09:03:49 浏览: 297
您可以使用QDomDocument类来将QTreeView保存为XML文件。下面是一个简单的示例代码:
```cpp
void saveTreeViewToXML(QTreeView* treeView, const QString& fileName)
{
QDomDocument doc("tree");
QDomElement root = doc.createElement("TreeView");
doc.appendChild(root);
QAbstractItemModel* model = treeView->model();
QModelIndex rootIndex = model->index(0, 0);
// 递归遍历树,将节点添加到XML中
saveTreeNodesToXML(doc, root, model, rootIndex);
// 将XML保存到文件中
QFile file(fileName);
if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
{
return;
}
QTextStream out(&file);
out << doc.toString();
file.close();
}
void saveTreeNodesToXML(QDomDocument& doc, QDomElement& parent, QAbstractItemModel* model, const QModelIndex& index)
{
int rowCount = model->rowCount(index);
int columnCount = model->columnCount(index);
for (int i = 0; i < rowCount; ++i)
{
QDomElement child = doc.createElement("Node");
parent.appendChild(child);
for (int j = 0; j < columnCount; ++j)
{
QModelIndex childIndex = index.child(i, j);
QVariant data = model->data(childIndex);
QDomElement element = doc.createElement(QString("Column%1").arg(j));
QDomText text = doc.createTextNode(data.toString());
element.appendChild(text);
child.appendChild(element);
}
// 递归添加子节点
saveTreeNodesToXML(doc, child, model, index.child(i, 0));
}
}
```
您可以将以上代码添加到您的项目中,并且在需要保存QTreeView为XML文件时调用`saveTreeViewToXML`函数,传入QTreeView指针和保存文件名即可。
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