实现.net的 TreeView客户端两个个性化操作

　　2. 只打开一个节点(关闭其他兄弟节点)

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>LeftMenu_Tree</title>
</head>
<body bgcolor="#DDEDFD">
    <form id="form1" runat="server">
        <a href="javascript:TreeviewExpandCollapseAll('<%=TreeView1.ClientID%>', true)">Expand
            All</a> , <a href="javascript:TreeviewExpandCollapseAll('<%=TreeView1.ClientID%>', false)">
                Collapse All</a>
        <asp:TreeView ID="TreeView1" SkinID="tvClass" runat="server" ShowLines="true" NodeWrap="false">

</asp:TreeView>
</form>
</body>
</html>

                else if (lineType == "t")
                {
                    img.src = data.images[12];
                }
                else if (lineType == "-")
                {
                    img.src = data.images[18];
                }

                else
                {
                    img.src = data.images[5];
                }
                img.alt = data.collapseToolTip.replace(/\{0\}/, TreeView_GetNodeText(node));
            }
        }
        else
        {
            children.style.display = "none";

            newExpandState = "c";
            if ((typeof(img) != "undefined") && (img != null))
            {
                if (lineType == "l")
                {
                    img.src = data.images[14];
                }
                else if (lineType == "t")

                {
                    img.src = data.images[11];
                }
                else if (lineType == "-")
                {
                    img.src = data.images[17];
                }
                else
                {

                    img.src = data.images[4];
                }
                img.alt = data.expandToolTip.replace(/\{0\}/, TreeView_GetNodeText(node));
            }
        }
    }
    catch(e) {}
    data.expandState.value = data.expandState.value.substring(0, index) + newExpandState + data.expandState.value.slice(index + 1);
}

//折叠兄弟节点
function CollapseBrothers(data,childContainer)
{
    var parent = childContainer.parentNode;
    for(i=0; i< parent.childNodes.length; i++)
    {
        if(parent.childNodes[i].tagName.toLowerCase() =="div")
        {
            if(parent.childNodes[i].id != childContainer.id)
            {
                parent.childNodes[i].style.display = "none"
            }
        }
        else if(parent.childNodes[i].tagName.toLowerCase() =="table")
        {
            var treeLinks = parent.childNodes[i].getElementsByTagName("a");
            if(treeLinks.length > 2)
            {
                var j=0;
                if(treeLinks[j].firstChild.tagName)
                {
                    if(treeLinks[j].firstChild.tagName.toLowerCase() == "img")
                    {
                        var img = treeLinks[j].firstChild;

                        if(i==0)
                            img.src = data.images[8];
                        else if(i==parent.childNodes.length-2)
                            img.src = data.images[14];
                        else
                            img.src = data.images[11];
                    }
                }
            }
        }
    }
}
//-----------------------------------------------------------------------------
</script>