请问各位高手怎么获得树型控件中某一节点父节点的下一节点啊？

Question

<tvns:treeview id="TreeView1" hoverStyle="color:#ffffff;background:#000000;" selectedStyle="color:#ffffff;background:#51303E;font-weight:bold;" imageUrl="SpecialFile/folder.gif" selectedImageUrl="SpecialFile/folderopen.gif" childType="folder" selectedNodeIndex="0" HelperID="__TreeView1_State__" systemImagesPath="SpecialFile" showToolTip="false" onexpand="javascript: if (this.clickedNodeIndex != null) this.queueEvent('onexpand', this.clickedNodeIndex)" oncollapse="javascript: if (this.clickedNodeIndex != null) this.queueEvent('oncollapse', this.clickedNodeIndex)" oncheck="javascript: if (this.clickedNodeIndex != null) this.queueEvent('oncheck', this.clickedNodeIndex)" onselectedindexchange="javascript: if (event.oldTreeNodeIndex != event.newTreeNodeIndex) this.queueEvent('onselectedindexchange', event.oldTreeNodeIndex + ',' + event.newTreeNodeIndex)" style="background-color:#AECFC1;">
<tvns:treenode NavigateUrl="ShowFile.htm?ADAF523B-CA28-48B2-B33F-969683EE49FB" Target="main" CheckBox="False" ID="7AAADDE4-69B0-4D29-ABCF-33AF0909C992">石油储运安全知识与事故案例分析
<tvns:treenode NavigateUrl="ShowFile.htm?7656EDFB-3473-4070-B766-8E51E01AD32F" Target="main" CheckBox="False" ID="06200DF6-6BE0-4787-98FF-7161BD11EE96">石油储运安全知识与事故案例分析封面
<tvns:treenode NavigateUrl="ShowFile.htm?FB8C61F5-BBFC-4B41-B4A9-FF2EBE34A538" Target="main" CheckBox="False" ID="1CCB0ECD-8756-4A8E-B89A-B06779C0ED33">石油储运安全知识
<tvns:treenode NavigateUrl="ShowFile.htm?D5CFC859-CE68-49F8-A2AB-B265A28B00FC" Target="main" CheckBox="False" ID="81012C16-16CE-49EA-96BC-87170E113E9D">01,人为失误引起的事故
<tvns:treenode NavigateUrl="ShowFile.htm?7EC87344-2463-42AD-A4E9-56E0753F75AF" Target="main" CheckBox="False" ID="4DDB04E2-E5E8-47D0-A3AA-8405F6D53694">报警被忽视引起的事故
<tvns:treenode NavigateUrl="ShowFile.htm?1F73C42F-803B-4C78-B4E4-0A32DCD64F30" Target="main" CheckBox="False" ID="D57C1697-5557-4E39-959A-B301FA679ECA">处理故障不停机 挤死副值班长
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?AB435B9E-84F1-4F81-A8D7-D8907CDFA8E4" Target="main" CheckBox="False" ID="5CF48F3C-DC03-4B2A-BF82-5EDFA2A74CB9">大庆石油化工总厂合成锅炉爆管事故
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?C408ACEC-A47D-4640-A3BA-0D67C9E0318D" Target="main" CheckBox="False" ID="9C20D59F-6D91-4C69-8AF4-B5FE548F4749">固定螺栓折断 钢绳弹出伤人
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?0BEDB2F2-7A2A-46B2-9502-2FAF7EBC3F0E" Target="main" CheckBox="False" ID="DEDADB5D-9883-4C21-88EE-77D0E5FBA888">烘炉超温 烧坏炉管
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?6A041749-C156-4116-9BC3-02315C16B1B5" Target="main" CheckBox="False" ID="6AD9AF7F-797C-4170-B11C-455D9E6153DB">环乙烷不小心洒地 铁器撞击产静电瞬间起火
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?B5D2F09A-5F0C-4BE7-9ABD-9010C63C997E" Target="main" CheckBox="False" ID="ABAE9ED9-6B47-43A7-88F2-CBCD8457F9D0">液氯钢罐突发泄漏 处置方法得当？
</tvns:treenode>
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?528085A1-1022-4080-953A-BC08C83223DE" Target="main" CheckBox="False" ID="02F5D5CA-C1F6-48BF-A3F3-BDDDAA33A3D5">你认识到不执行工作程序的危险吗？
<tvns:treenode NavigateUrl="ShowFile.htm?443236D4-EE36-46A1-965E-9ACADD952D28" Target="main" CheckBox="False" ID="D8792658-B422-4D86-9B36-6B2CA7CDC8A5">不搭脚手架 高处坠落身亡
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?183D03D2-9B7B-42DC-B010-D956D8C6B181" Target="main" CheckBox="False" ID="263C2E67-7634-4EC9-900D-7A8EA071FCF7">操作程序不正确 放电致人死命
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?2770C1A9-C647-420B-A12E-26CF50DD95E5" Target="main" CheckBox="False" ID="D3BB3886-64AA-41FB-8D33-D3684141CB3F">带压拆阀 阀门崩人
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?5E583BD7-9FBE-482C-998A-B2022FC1C76E" Target="main" CheckBox="False" ID="5657F892-C518-4AAD-ACAA-2ECA295800B5">管线冻凝 瓦斯闪爆
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?47296626-BC50-46DA-8028-9E3D8AB0F312" Target="main" CheckBox="False" ID="B397ABFF-D857-42C6-8C32-FFDB910B73B5">忽视安全措施 造成腰椎骨折
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?AB78384E-492A-4E8B-8868-88D3C74681ED" Target="main" CheckBox="False" ID="762B5152-538A-49BE-BBCD-D803AD77E0B4">火焊工误认为水箱内无人，导致水爆燃起火
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?5D317E8B-BE39-4D7E-970A-F9118BF45BAB" Target="main" CheckBox="False" ID="3C26FFE6-F3D6-4AAD-BE40-8D04482A12A2">乱开阀门 氨气泄露1人死亡
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?75908C69-3DF1-41CC-9C7F-96E54D23A769" Target="main" CheckBox="False" ID="420175E7-0FCF-4F2F-B78E-7D0B384A5B7E">违规跳罐顶 摔落腿骨折
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?DB149A9D-1622-4918-83FC-29AEAD346076" Target="main" CheckBox="False" ID="C26C579B-4B5F-4375-9797-C07BEC45B60C">未戴呼吸器入罐检查 1死1伤
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?AFB111D2-F8D1-4489-A00A-3FAE25B5035F" Target="main" CheckBox="False" ID="F1F7625F-20AE-42B9-818A-C0288318122D">修车安全设施不当，砸死修理工
</tvns:treenode>
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?3286747A-3B03-47AF-A4AE-33BEBFAD81AC" Target="main" CheckBox="False" ID="5C1EBDB4-10AC-4F76-B6D7-86C410519729">你是爬管子还是走90米？
<tvns:treenode NavigateUrl="ShowFile.htm?1A80B656-AFE0-4E51-A502-CA1B88187525" Target="main" CheckBox="False" ID="129756B8-08FE-4A87-8CAF-53AC058FB9C0">不搭脚手架 高处坠落身亡
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?0BDCABB5-1B40-47B6-BF88-F1B840F00458" Target="main" CheckBox="False" ID="92A73E5E-0954-45CF-8624-3EEF51E48D94">不系安全带，高处坠落不幸死亡
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?42A37F27-163C-4B1E-9DDE-407A7531AFAD" Target="main" CheckBox="False" ID="71E36152-2DEA-4783-A3C3-C8B6F9C32638">错接电源火线 泵体串电伤人
</tvns:treenode>
<tvns:treenode NavigateUrl="ShowFile.htm?74245479-B726-430E-AE9B-B4D73D0F3A6C" Target="main" CheckBox="False" ID="D68F0065-EDFC-491F-A5B3-C6A40AD9CBFA">吊管作业基础不牢 引发事故
</tvns:treenode>

Answer 1

比如obj是你的一个节点
试试看obj.parentNode.nextSibling

Answer 2

我试过了,不行.报,对象不支持此方法或属性.
你看看我是不是那里写错了.
var t = window.top.leftTree.document.getElementById("treeview1");
 v = t.selectedNodeIndex;
 AllRootNode = t.getTreeNode(v);
 AllRootNode = AllRootNode.parentElement.nextSibling;

Answer 3

纠正一下,报:"AllRootNode.parentNode.nextSibling"为空或不是对象.