[WinForm][DevExpress][TreeList]向上递归，获取符合条件的父节点

关键代码：

       /// <summary>
        /// 向上递归，获取符合条件的父节点
        /// </summary>
        /// <param name="node">需要向上递归的节点</param>
        /// <param name="conditionHanlder">判断条件【委托】</param>
        /// <returns>符合条件的节点【TreeListNode】</returns>
        public static TreeListNode GetSelfParentNode(this TreeListNode node, Predicate<TreeListNode> conditionHanlder)
        {
            TreeListNode _parentNode = node.ParentNode;
            TreeListNode _conditonNode = null;
            if (_parentNode != null)
            {
                if (conditionHanlder(_parentNode))//判断上一级父节点是否符合要求
                {
                    _conditonNode = _parentNode;
                }
                if (_conditonNode == null)//若没有找到符合要求的节点，递归继续
                    _conditonNode = GetSelfParentNode(_parentNode, conditionHanlder);
            }
            return _conditonNode;
        }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
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.csharpcode .lnum { color: #606060; }

代码使用：

            TreeListNode _node = e.Node;
            TreeListNode _condionParent = _node.GetSelfParentNode(n => n.GetNodeType() == NodeType.Cab);//获取类型为CAB类型的父节点
            Trace.WriteLine(_condionParent.GetName());

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

[WinForm][DevExpress][TreeList]向上递归，获取符合条件的父节点

时间： 2024-10-12 04:53:31

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