数据源控制TreeView节点展开和收起
<TreeView>
<TreeView.ItemContainerStyle>
<Style TargetType="TreeViewItem">
<Setter Property="IsExpanded" Value="{Binding IsChecked}" />
</Style>
</TreeView.ItemContainerStyle>
</TreeView>
模型类里设置:
public bool IsChecked { get; set; }