/// <summary>
/// 递归遍历节点
/// </summary>
private void TravellNodes(HhMenuTreeNode currentNode, Action <HhMenuTreeNode> action)
{
action?.Invoke(currentNode);
foreach (HhMenuTreeNode node in currentNode.Nodes)
{
//action?.Invoke(node);
TravellNodes(node, action);
}
}
/// <summary>
/// 递归查找指定菜单节点
/// </summary>
/// <param name="menuId"></param>
private HhMenuTreeNode FindNodeInternal(HhMenuTreeNode currentNode, string menuId)
{
foreach (HhMenuTreeNode node in currentNode.Nodes)
{
if (node.Id == menuId)
{
return(node);
}
var nd = FindNodeInternal(node, menuId);
if (nd != null)
{
return(nd);
}
}
return(null);
}
/// <summary>
/// 递归加载所有子菜单节点
/// </summary>
/// <param name="currentNode">当前节点</param>
/// <param name="parentId">父菜单Id</param>
/// <returns></returns>
private void LoadTreeNodes(HhMenuTreeNode currentNode, string parentId)
{
if (SourceNodes == null)
{
return;
}
var nodes = SourceNodes.Where(n => n.ParentId == parentId).OrderBy(n => n.Sort);
foreach (var node in nodes)
{
//node.BackColor = Color.MediumTurquoise;
currentNode.Nodes.Add(node);
LoadTreeNodes(node, node.Id);
}
;
}
/// <summary>
/// 新建菜单视图
/// </summary>
/// <returns></returns>
public void BuildView()
{
// 根节点
_rootNode = new HhMenuTreeNode(RootNodeText);
//
// 加载所有子菜单节点
LoadTreeNodes(_rootNode, ""); //注意：假设根菜单Id为""
//
// 清空并添加根节点
this.Nodes.Clear();
if (NeedRootNode)
{
this.Nodes.Add(_rootNode);
}
else
{
for (int i = 0; i < _rootNode.Nodes.Count; i++)
{
this.Nodes.Add(_rootNode.Nodes[i]);
}
}
}