/// <summary>
/// 查找父路径
/// </summary>
/// <param name="source"></param>
/// <param name="target"></param>
/// <returns>父节点</returns>
private List <TreeViewDemoItem> GetParentNodes(TreeViewDemoItem source, TreeViewDemoItem target)
{
if (target == null || source == null)
{
return(null);
}
if (source == target)
{
//用非null的空集合表示匹配成功
return(new List <TreeViewDemoItem>());
}
else
{
var result = new List <TreeViewDemoItem>();
foreach (var treeViewDemoItem in source.Children)
{
var getResult = GetParentNodes(treeViewDemoItem, target);
if (getResult != null)
{
result.Add(treeViewDemoItem);
result.AddRange(getResult);
return(result);
}
}
}
return(null);
}
public TreeViewDemoWindow()
{
InitializeComponent();
GetAllParentsFun = GetAllParentsFunHandler;
var flagTreeViewItem = new TreeViewDemoItem();
TreeViewItems = new List <TreeViewDemoItem>();
for (int i = 0; i < 5; i++)
{
var newTreeItem = new TreeViewDemoItem();
for (int j = 0; j < 15; j++)
{
var subTreeViewItem = new TreeViewDemoItem();
for (int k = 0; k < 25; k++)
{
if (i == 3 && j == 5 && k == 12)
{
subTreeViewItem.Children.Add(flagTreeViewItem);
}
else
{
subTreeViewItem.Children.Add(new TreeViewDemoItem());
}
}
newTreeItem.Children.Add(subTreeViewItem);
}
TreeViewItems.Add(newTreeItem);
}
DataContext = this;
SelectedItem = flagTreeViewItem;
}
