原来在论坛里发过专题帖子,只是由于帖子丢失原因,有些问题找不到了,同时这次也补充了一些,发到文档区以方便查询吧原贴http://expert.csdn.net/Expert/topic/1525/1525202.xml
1.下载地址http://msdn.microsoft.com/downloads/samples/internet/ASP_DOT_NET_ServerControls/WebControls/default.asp下载后是后缀为bat的版本(1)bulid.将bulid.bat的路径指向csc.exe所在路径,生成Microsoft.Web.UI.WebControls.dll。(2)在wwwroot下创建空目录webctrl_client1_0。(3)将buildRuntime下的文件拷至webctrl_client1_0下。(4)选择工具箱的自定义工具箱,添加Microsoft.Web.UI.WebControls.dll。有些麻烦但如果你能找到后缀是msi的自动安装版本,直接下一步就行(我一直用这个版本,hoho)安装后,通过“自定义工具箱”->“.net框架组件”把TreeView添加到工具箱里
2.运行时无法显示一般是TreeView的版本问题,最好下载英文版自动安装版本重新安装,安装前应该先到添加删除程序里卸掉原版本
3.显示格式出错(非树状显示)TreeView要求客户端浏览器版本为IE5.5及以上,最好要求客户端升级为IE6.0
4.框架里使用TreeView设置NavigateUrl、Target属性,可更新另外的Frame
5.找不到TreeNode类使用TreeView,最好添加namespace:using Microsoft.Web.UI.WebControls;
6.遍历TreeView节点(递归算法)private void Page_Load(object sender, System.EventArgs e){ GetAllNodeText(TreeView1.Nodes);}void GetAllNodeText(TreeNodeCollection tnc){ foreach(TreeNode node in tnc) { if(node.Nodes.Count!=0) GetAllNodeText(node.Nodes); Response.Write(node.Text + " "); }}
7.得到node结点的父节点TreeNode pnode;if(node.Parent is TreeNode) pnode=(TreeNode)node.Parent;else //node is root node
8.修改TreeView样式(示例)<iewc:TreeView id="TreeView1" runat="server" HoverStyle="color:blue;background:#00ffCC;" DefaultStyle="background:red;color:yellow;" SelectedStyle="color:red;background:#00ff00;">用代码:TreeView1.DefaultStyle["font-size"] = "20pt";
9.展开时不提交,改变选择节点时才提交将autopostback设置成false; 在body里添加 <body οnlοad="initTree()"> 然后在PageLoad里写: string strTreeName = "TreeView1"; string strRef = Page.GetPostBackEventReference(TreeView1); string strScript = "<script language="JavaScript"> " + "<!-- " + " function initTree() { " +" " + strTreeName + ".onSelectedIndexChange = function() { " + "if (event.oldTreeNodeIndex != event.newTreeNodeIndex) " + "this.queueEvent('onselectedindexchange', event.oldTreeNodeIndex + ',' + event.newTreeNodeIndex); " + "window.setTimeout('" + strRef.Replace("'","/'") + "', 0, 'JavaScript'); " + " } " + " } " + "// --> " + "</script>"; Page.RegisterClientScriptBlock("InitTree",strScript ); 这样就只有你点击的节点更改的时候才提交!
10.TreeView结合XML把XML文件设置为如下格式,然后直接设置TreeNodeSrc为该XML文件就行<?xml version="1.0" encoding="GB2312"?><TREENODES> <TREENODE TEXT="node0" EXPANDED="true"> <TREENODE TEXT="node1"/> <TREENODE TEXT="node2"/> </TREENODE> <TREENODE TEXT="node3" NavigateURL="3.aspx"/></TREENODES>或者用代码TreeView1.TreeNodeSrc="a.xml";TreeView1.DataBind();
客户端控制TreeViewhttp://expert.csdn.net/Expert/topic/1382/1382892.xml
1.设置所选节点,如选中第二个节点function SetSelNode(){ TreeView1.selectedNodeIndex="1";}
2.得到所选节点的Text,ID或NodeDatafunction GetAttribute(){ alert(TreeView1.getTreeNode(TreeView1.selectedNodeIndex).getAttribute("Text"));}替换Text为ID或NodeData,可分别得到所选节点的ID或NodeData
3.修改节点属性,如修改第一个节点的Textfunction ModifyNode(){ var node=TreeView1.getTreeNode("0"); node.setAttribute("Text","hgknight");}
4.得到点击节点function TreeView1.onclick(){ alert(TreeView1.getTreeNode(TreeView1.clickedNodeIndex).getAttribute("Text"));}
5.添加节点function AddNode(){ var node=TreeView1.createTreeNode(); node.setAttribute("Text","hgknight"); TreeView1.add(node); }
6.js遍历所有节点 var AllRootNode=new Array(); AllRootNode=TreeView1.getChildren(); AlertNode(AllRootNode);
function AlertNode(NodeArray) { if(parseInt(NodeArray.length)==0) return; else { for(i=0;i<NodeArray.length;i++) { var cNode; cNode=NodeArray[i]; alert(cNode.getAttribute("Text")); if(parseInt(cNode.getChildren().length)!=0) AlertNode(cNode.getChildren()); } } }
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