[WinForm][DevExpress][TreeList]條件隱藏節點CheckBox

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關鍵代碼：

        /// <summary>        /// 隱藏CheckBox        /// 說明        /// 在CustomDrawNodeCheckBox事件中使用        /// eg:        /// TreeList _curTree = (TreeList)sender;        /// _curTree.HideCheckBox(n => n.GetNodeType() == NodeType.Area || n.GetNodeType() == NodeType.CabsGroupRoot, e);        /// </summary>        /// <param name="tree">TreeList</param>        /// <param name="conditionHanlder">委託</param>        /// <param name="e">CustomDrawNodeCheckBoxEventArgs</param>        public static void HideCheckBox(this TreeListNode tree, Predicate<TreeListNode> conditionHanlder, CustomDrawNodeCheckBoxEventArgs e)        {            if (conditionHanlder(e.Node))            {                e.Handled = true;            }        }

代碼使用：

        void LHTree_CustomDrawNodeCheckBox(object sender, CustomDrawNodeCheckBoxEventArgs e)        {            TreeList _curTree = (TreeList)sender;            _curTree.HideCheckBox(n => n.GetNodeType() == NodeType.Area || n.GetNodeType() == NodeType.CabsGroupRoot, e);        }

代碼效果：