您的位置：首页 > Web前端 > Node.js

【原】用使用JavaScript展开/折叠TreeView中所有节点(Expand and Collapse All Nodes of asp.net Treeview on the client with javascript)

2009-02-07 02:15 1096 查看

这是我给客户的一个解决方案，为了节约时间，我直接贴可以跑到代码，同时没有写注释，希望谅解，

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="jstree.aspx.cs" Inherits="jstree" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>

<script type="text/javascript">

function expandAll(treeViewId)
{
var treeView = document.getElementById(treeViewId);
var treeLinks = treeView.getElementsByTagName("a");
var j = true;
for(i=0;i<treeLinks.length;i++)
{
if(treeLinks[i].firstChild.tagName == "IMG")
{
var node = treeLinks[i];
var level = parseInt(treeLinks[i].id.substr(treeLinks[i].id.length - 1),10);
var childContainer = document.getElementById(treeLinks[i].id + "Nodes");

if(j)
{
if(childContainer.style.display == "none")
TreeView_ToggleNode(eval(treeViewId +"_Data"),level,node,'r',childContainer);
j = false;
}
else
{
if(childContainer.style.display == "none")
TreeView_ToggleNode(eval(treeViewId +"_Data"),level,node,'l',childContainer);
}
}
}
}

function collapseAll(treeViewId)
{
var treeView = document.getElementById(treeViewId);
var treeLinks = treeView.getElementsByTagName("a");
var j = true;
for(i=0;i<treeLinks.length;i++)
{
if(treeLinks[i].firstChild.tagName == "IMG")
{
var node = treeLinks[i];
var level = parseInt(treeLinks[i].id.substr(treeLinks[i].id.length - 1),10);
var childContainer = document.getElementById(treeLinks[i].id + "Nodes");

if(j)
{
if(childContainer.style.display == "block")
TreeView_ToggleNode(eval(treeViewId +"_Data"),level,node,'r',childContainer);
j = false;
}
else
{
if(childContainer.style.display == "block")
TreeView_ToggleNode(eval(treeViewId +"_Data"),level,node,'l',childContainer);
}
}
}
}

function Button1_onclick() {
expandAll('<%=TreeView1.ClientID%>');
}

function Button2_onclick() {
collapseAll('<%=TreeView1.ClientID%>');
}

</script>

</head>
<body>
<form id="form1" runat="server">
<div>
</div>
<asp:TreeView ID="TreeView1" runat="server">
<Nodes>
<asp:TreeNode Text="New Node" Value="New Node">
<asp:TreeNode Text="New Node" Value="New Node">
<asp:TreeNode Text="New Node" Value="New Node">
<asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
</asp:TreeNode>
</asp:TreeNode>
<asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
<asp:TreeNode Text="New Node" Value="New Node">
<asp:TreeNode Text="New Node" Value="New Node">
<asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
</asp:TreeNode>
</asp:TreeNode>
<asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
<asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
<asp:TreeNode Text="New Node" Value="New Node">
<asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
</asp:TreeNode>
</asp:TreeNode>
</Nodes>
</asp:TreeView>
</form>
<p>
<input id="Button1" type="button" value="Expand All" onclick="return Button1_onclick()" /></p>
<p>
<input id="Button2" type="button" value="Collapse All" onclick="return Button2_onclick()" /></p>
</body>
</html>

这是第二段代码的出处：/article/4704773.html

这个是我写文章出处：http://forums.asp.net/p/1355481/2779144.aspx

如果你有什么算法，也请共享出来，谢谢了先！

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签：

相关文章推荐

新的分享

章节导航