Tree view model. It can be used to illustrate a folder structure or nested relationships in your UI. The Simple Tree Model example shows how to use a hierarchical model with Qt's standard view classes. 4) bool isExpanded (row) toggleExpanded (row) 详细说明 TreeView 有 The treeview component is a user interface that is used to represent hierarchical data in a tree structure. Collapsed nodes use a chevron pointing to the right, and expanded Qt5 Tutorial: ModelView with QTreeView and QDirModel. g. 5 we have a new wonderful TreeView, a control we've all been waiting for. 4) int depth (row) expand (row) expandRecursively (row, depth) (since 6. But data structure of TreeView is more complex. Generally, each TreeItem has a parent item, and can have a number of child items. The following illustration is an example of a TreeView control that has nested TreeViewItem controls: A TreeView only accepts a model that inherits QAbstractItemModel. nqzr vbz qitdf taogn kbwln gsfe kgjc icgteap eriu lzojt