zoukankan html css js c++ java

一个js无限极分级树控件

View Code

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

<!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 id="Head1" runat="server">
    <title>无标题页</title>
    <!-- Tree CSS -->
    <link rel="StyleSheet" href="http://www.cnblogs.com/../Styles/dtree.css" type="text/css" />
    <!-- Tree JS-->
    <script type="text/javascript" src="http://www.cnblogs.com/../JS/dtree.js"></script>
    <!--JQuery LIB -->
    <script type="text/javascript" src="http://www.cnblogs.com/../JS/jquery-1.4.1.min.js"></script>
    <script type="text/javascript">
        var ie = /*@cc_on!@*/!1;
        if (!ie) {
            window.location.href = "/404.htm";
        }
        function launchClose() {
            window.opener = null; //禁止关闭窗口的提示
            window.close(); //自动关闭本窗口
        }

        $(document).ready(function () {
            $("#imgLoading").hide();
        });
        function opt(did, name, parent) {
            alert(did + "--" + name + "--" + parent);
        }
    </script>
    <script language="JavaScript">

        function CloseWin() {
            window.opener = null;
            window.open('', '_self', '');
            window.close();
        }

                </script>
</head>
<body>
    <form id="form1" runat="server">
    <input type=button value=关闭 onclick="CloseWin()"> 
    <asp:Literal ID="ltlTree" runat="server"></asp:Literal>
    </form>
</body>
</html>

View Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;

using SplicingSystem.InterFace;
using SplicingSystem.ClassLibrary;
using SplicingSystem.DataBase;
using System.Data;
using System.Drawing;

public partial class BackAdmin_BaseDataAdmin_TreeDemo : System.Web.UI.Page
{
    StringBuilder appendTree = new StringBuilder();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
           

            //拼javascript
            appendTree.Append("<a href=\"javascript: d.openAll();\">Open</a> | <a href=\"javascript: d.closeAll();\">Close</a><br />")
                .Append("<script type=\"text/javascript\">")
                .Append("d = new dTree('d');");
            string NodeDepName = DictionaryDBHelp.GetHashValue("AdminWebSite", "TopDivision");
            if (NodeDepName == "")
            {
                NodeDepName = "根节点";
            }
            //id, pid, name, url, title, target, icon, iconOpen, open
            appendTree.Append("d.add(0,-1,'" + NodeDepName + "','#','"+NodeDepName+"');");

            CreateTree(0);

            appendTree.Append("document.write(d);")
                .Append("d.closeAll();")
                .Append("</script>");

            ltlTree.Text = appendTree.ToString();

            //ClientScript.RegisterStartupScript(this.GetType(),"key",appendTree.ToString());
        }
    }
    /// <summary>
    /// 递归添加树节点
    /// </summary>
    /// <param name="MenuParentID"></param>
    private void CreateTree(Int32 MenuParentID)
    {
        IList<NNode> list = new List<NNode>();
        list = GetMenuByParentID(MenuParentID);
        for (Int32 i = 0; i < list.Count; i++)
        {
            appendTree.Append(String.Format("d.add({0},{1},'{2}','{3}','{2}','');",
                list[i].ID, MenuParentID, list[i].MenuName, list[i].MenuClickURL));
            CreateTree(list[i].ID);
        }
    }
    protected override void OnPreInit(EventArgs e)
    {
        base.OnPreInit(e);
        //显示正在加载数据的提示
        Response.Write("<img src=\"Images/loading.gif\" id=\"imgLoading\" alt=\"数据加载中\" />");
    }


    public class NNode
    {
        public int ID { get; set; }
        public int ParentID { get; set; }
        public string MenuName { get; set; }
        public string MenuClickURL { get; set; }
    }




    public IList<NNode> GetMenuByParentID(Int32 MenuParentID)
    {
        #region 加载树节点
        IList<NNode> iln = new List<NNode>();
        DataSet ds = DictionaryDBHelp.GetDataSet("*", "YXJY_AdministrativeAreaInfo", "FatherID=" + MenuParentID, "");
        if (DbHelperSQL.CheckDataSet(ds, false))
        {
            for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
            {
                NNode nn = new NNode();
                nn.ID = SysFunction.IntParse(ds.Tables[0].Rows[i]["ID"]);
                nn.ParentID = MenuParentID;
                nn.MenuName = ds.Tables[0].Rows[i]["DivisionName"].ToString();
                nn.MenuClickURL = "#";
                iln.Add(nn);
            }
        }

        #endregion
        return iln;
    }

View Code

/*--------------------------------------------------|

| dTree 2.05 | www.destroydrop.com/javascript/tree/ |

|---------------------------------------------------|

| Copyright (c) 2002-2003 Geir Landr?              |

|                                                   |

| This script can be used freely as long as all     |

| copyright messages are intact.                    |

|                                                   |

| Updated: 17.04.2003                               |

|--------------------------------------------------*/



// Node object

function Node(id, pid, name, url, title, target, icon, iconOpen, open) {

    this.id = id;

    this.pid = pid;

    this.name = name;

    this.url = url;

    this.title = title;

    this.target = target;

    this.icon = icon;

    this.iconOpen = iconOpen;

    this._io = open || false;

    this._is = false;

    this._ls = false;

    this._hc = false;

    this._ai = 0;

    this._p;

};



// Tree object

function dTree(objName) {

    this.config = {

        target                    : null,

        folderLinks            : true,

        useSelection        : true,

        useCookies            : true,

        useLines                : true,

        useIcons                : true,

        useStatusText        : false,

        closeSameLevel    : false,

        inOrder                    : false

    }

    this.icon = {

        root: '/Images/img/base.gif',

        folder            : '/Images/img/folder.gif',

        folderOpen    : '/Images/img/folderopen.gif',

        node                : '/Images/img/page.gif',

        empty                : '/Images/img/empty.gif',

        line                : '/Images/img/line.gif',

        join                : '/Images/img/join.gif',

        joinBottom    : '/Images/img/joinbottom.gif',

        plus                : '/Images/img/plus.gif',

        plusBottom    : '/Images/img/plusbottom.gif',

        minus                : '/Images/img/minus.gif',

        minusBottom    : '/Images/img/minusbottom.gif',

        nlPlus            : '/Images/img/nolines_plus.gif',

        nlMinus            : '/Images/img/nolines_minus.gif'

    };

    this.obj = objName;

    this.aNodes = [];

    this.aIndent = [];

    this.root = new Node(-1);

    this.selectedNode = null;

    this.selectedFound = false;

    this.completed = false;

};



// Adds a new node to the node array

dTree.prototype.add = function(id, pid, name, url, title, target, icon, iconOpen, open) {

    this.aNodes[this.aNodes.length] = new Node(id, pid, name, url, title, target, icon, iconOpen, open);

};



// Open/close all nodes

dTree.prototype.openAll = function() {

    this.oAll(true);

};

dTree.prototype.closeAll = function() {

    this.oAll(false);

};



// Outputs the tree to the page

dTree.prototype.toString = function() {

    var str = '<div class="dtree">\n';

    if (document.getElementById) {

        if (this.config.useCookies) this.selectedNode = this.getSelected();

        str += this.addNode(this.root);

    } else str += 'Browser not supported.';

    str += '</div>';

    if (!this.selectedFound) this.selectedNode = null;

    this.completed = true;

    return str;

};



// Creates the tree structure

dTree.prototype.addNode = function(pNode) {

    var str = '';

    var n=0;

    if (this.config.inOrder) n = pNode._ai;

    for (n; n<this.aNodes.length; n++) {

        if (this.aNodes[n].pid == pNode.id) {

            var cn = this.aNodes[n];

            cn._p = pNode;

            cn._ai = n;

            this.setCS(cn);

            if (!cn.target && this.config.target) cn.target = this.config.target;

            if (cn._hc && !cn._io && this.config.useCookies) cn._io = this.isOpen(cn.id);

            if (!this.config.folderLinks && cn._hc) cn.url = null;

            if (this.config.useSelection && cn.id == this.selectedNode && !this.selectedFound) {

                    cn._is = true;

                    this.selectedNode = n;

                    this.selectedFound = true;

            }

            str += this.node(cn, n);

            if (cn._ls) break;

        }

    }

    return str;

};



// Creates the node icon, url and text

dTree.prototype.node = function(node, nodeId) {

    var str = '<div class="dTreeNode">' + this.indent(node, nodeId);

    if (this.config.useIcons) {

        if (!node.icon) node.icon = (this.root.id == node.pid) ? this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node);

        if (!node.iconOpen) node.iconOpen = (node._hc) ? this.icon.folderOpen : this.icon.node;

        if (this.root.id == node.pid) {

            node.icon = this.icon.root;

            node.iconOpen = this.icon.root;

        }

        str += '<img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? node.iconOpen : node.icon) + '" alt="" />';

    }

    if (node.url) {

        str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" href="' + node.url + '"';

        if (node.title) str += ' title="' + node.title + '"';

        if (node.target) str += ' target="' + node.target + '"';

        if (this.config.useStatusText) str += ' onmouseover="window.status=\'' + node.name + '\';return true;" onmouseout="window.status=\'\';return true;" ';

        if (this.config.useSelection && ((node._hc && this.config.folderLinks) || !node._hc))

            str += ' onclick="javascript: ' + this.obj + '.s(' + node.id + ',' + nodeId + ',' + node.pid + ');"';

        str += '>';

    }

    else if ((!this.config.folderLinks || !node.url) && node._hc && node.pid != this.root.id)

        str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node">';

    str += node.name;

    if (node.url || ((!this.config.folderLinks || !node.url) && node._hc)) str += '</a>';

    str += '</div>';

    if (node._hc) {

        str += '<div id="d' + this.obj + nodeId + '" class="clip" style="display:' + ((this.root.id == node.pid || node._io) ? 'block' : 'none') + ';">';

        str += this.addNode(node);

        str += '</div>';

    }

    this.aIndent.pop();

    return str;

};



// Adds the empty and line icons

dTree.prototype.indent = function(node, nodeId) {

    var str = '';

    if (this.root.id != node.pid) {

        for (var n=0; n<this.aIndent.length; n++)

            str += '<img src="' + ( (this.aIndent[n] == 1 && this.config.useLines) ? this.icon.line : this.icon.empty ) + '" alt="" />';

        (node._ls) ? this.aIndent.push(0) : this.aIndent.push(1);

        if (node._hc) {

            str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');"><img id="j' + this.obj + nodeId + '" src="';

            if (!this.config.useLines) str += (node._io) ? this.icon.nlMinus : this.icon.nlPlus;

            else str += ( (node._io) ? ((node._ls && this.config.useLines) ? this.icon.minusBottom : this.icon.minus) : ((node._ls && this.config.useLines) ? this.icon.plusBottom : this.icon.plus ) );

            str += '" alt="" /></a>';

        } else str += '<img src="' + ( (this.config.useLines) ? ((node._ls) ? this.icon.joinBottom : this.icon.join ) : this.icon.empty) + '" alt="" />';

    }

    return str;

};



// Checks if a node has any children and if it is the last sibling

dTree.prototype.setCS = function(node) {

    var lastId;

    for (var n=0; n<this.aNodes.length; n++) {

        if (this.aNodes[n].pid == node.id) node._hc = true;

        if (this.aNodes[n].pid == node.pid) lastId = this.aNodes[n].id;

    }

    if (lastId==node.id) node._ls = true;

};



// Returns the selected node

dTree.prototype.getSelected = function() {

    var sn = this.getCookie('cs' + this.obj);

    return (sn) ? sn : null;

};



// Highlights the selected node
//idval 数据库id值
//id为js内部生成序号值
dTree.prototype.s = function (idval,id) {

    if (!this.config.useSelection) return;

    var cn = this.aNodes[id];

    if (cn._hc && !this.config.folderLinks) return;

    if (this.selectedNode != id) {

        if (this.selectedNode || this.selectedNode == 0) {

            eOld = document.getElementById("s" + this.obj + this.selectedNode);

            eOld.className = "node";
        }

        eNew = document.getElementById("s" + this.obj + id);

        eNew.className = "nodeSel";

        this.selectedNode = id;

        //执行外部js事件
        opt(idval);

        if (this.config.useCookies) this.setCookie('cs' + this.obj, cn.id);

    }

};



// Toggle Open or close

dTree.prototype.o = function(id) {

    var cn = this.aNodes[id];

    this.nodeStatus(!cn._io, id, cn._ls);

    cn._io = !cn._io;

    if (this.config.closeSameLevel) this.closeLevel(cn);

    if (this.config.useCookies) this.updateCookie();

};



// Open or close all nodes

dTree.prototype.oAll = function(status) {

    for (var n=0; n<this.aNodes.length; n++) {

        if (this.aNodes[n]._hc && this.aNodes[n].pid != this.root.id) {

            this.nodeStatus(status, n, this.aNodes[n]._ls)

            this.aNodes[n]._io = status;

        }

    }

    if (this.config.useCookies) this.updateCookie();

};



// Opens the tree to a specific node

dTree.prototype.openTo = function(nId, bSelect, bFirst) {

    if (!bFirst) {

        for (var n=0; n<this.aNodes.length; n++) {

            if (this.aNodes[n].id == nId) {

                nId=n;

                break;

            }

        }

    }

    var cn=this.aNodes[nId];

    if (cn.pid==this.root.id || !cn._p) return;

    cn._io = true;

    cn._is = bSelect;

    if (this.completed && cn._hc) this.nodeStatus(true, cn._ai, cn._ls);

    if (this.completed && bSelect) this.s(cn._ai);

    else if (bSelect) this._sn=cn._ai;

    this.openTo(cn._p._ai, false, true);

};



// Closes all nodes on the same level as certain node

dTree.prototype.closeLevel = function(node) {

    for (var n=0; n<this.aNodes.length; n++) {

        if (this.aNodes[n].pid == node.pid && this.aNodes[n].id != node.id && this.aNodes[n]._hc) {

            this.nodeStatus(false, n, this.aNodes[n]._ls);

            this.aNodes[n]._io = false;

            this.closeAllChildren(this.aNodes[n]);

        }

    }

}



// Closes all children of a node

dTree.prototype.closeAllChildren = function(node) {

    for (var n=0; n<this.aNodes.length; n++) {

        if (this.aNodes[n].pid == node.id && this.aNodes[n]._hc) {

            if (this.aNodes[n]._io) this.nodeStatus(false, n, this.aNodes[n]._ls);

            this.aNodes[n]._io = false;

            this.closeAllChildren(this.aNodes[n]);        

        }

    }

}



// Change the status of a node(open or closed)

dTree.prototype.nodeStatus = function(status, id, bottom) {

    eDiv    = document.getElementById('d' + this.obj + id);

    eJoin    = document.getElementById('j' + this.obj + id);

    if (this.config.useIcons) {

        eIcon    = document.getElementById('i' + this.obj + id);

        eIcon.src = (status) ? this.aNodes[id].iconOpen : this.aNodes[id].icon;

    }

    eJoin.src = (this.config.useLines)?

    ((status)?((bottom)?this.icon.minusBottom:this.icon.minus):((bottom)?this.icon.plusBottom:this.icon.plus)):

    ((status)?this.icon.nlMinus:this.icon.nlPlus);

    eDiv.style.display = (status) ? 'block': 'none';

};





// [Cookie] Clears a cookie

dTree.prototype.clearCookie = function() {

    var now = new Date();

    var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24);

    this.setCookie('co'+this.obj, 'cookieValue', yesterday);

    this.setCookie('cs'+this.obj, 'cookieValue', yesterday);

};



// [Cookie] Sets value in a cookie

dTree.prototype.setCookie = function(cookieName, cookieValue, expires, path, domain, secure) {

    document.cookie =

        escape(cookieName) + '=' + escape(cookieValue)

        + (expires ? '; expires=' + expires.toGMTString() : '')

        + (path ? '; path=' + path : '')

        + (domain ? '; domain=' + domain : '')

        + (secure ? '; secure' : '');

};



// [Cookie] Gets a value from a cookie

dTree.prototype.getCookie = function(cookieName) {

    var cookieValue = '';

    var posName = document.cookie.indexOf(escape(cookieName) + '=');

    if (posName != -1) {

        var posValue = posName + (escape(cookieName) + '=').length;

        var endPos = document.cookie.indexOf(';', posValue);

        if (endPos != -1) cookieValue = unescape(document.cookie.substring(posValue, endPos));

        else cookieValue = unescape(document.cookie.substring(posValue));

    }

    return (cookieValue);

};



// [Cookie] Returns ids of open nodes as a string

dTree.prototype.updateCookie = function() {

    var str = '';

    for (var n=0; n<this.aNodes.length; n++) {

        if (this.aNodes[n]._io && this.aNodes[n].pid != this.root.id) {

            if (str) str += '.';

            str += this.aNodes[n].id;

        }

    }

    this.setCookie('co' + this.obj, str);

};



// [Cookie] Checks if a node id is in a cookie

dTree.prototype.isOpen = function(id) {

    var aOpen = this.getCookie('co' + this.obj).split('.');

    for (var n=0; n<aOpen.length; n++)

        if (aOpen[n] == id) return true;

    return false;

};



// If Push and pop is not implemented by the browser

if (!Array.prototype.push) {

    Array.prototype.push = function array_push() {

        for(var i=0;i<arguments.length;i++)

            this[this.length]=arguments[i];

        return this.length;

    }

};

if (!Array.prototype.pop) {

    Array.prototype.pop = function array_pop() {

        lastElement = this[this.length-1];

        this.length = Math.max(this.length-1,0);

        return lastElement;

    }

};

View Code

.dtree {
    font-family: Verdana, Geneva, Arial, Helvetica, sans-serif;
    font-size: 11px;
    color: #666;
    white-space: nowrap;
}
.dtree img {
    border: 0px;
    vertical-align: middle;
}
.dtree a {
    color: #333;
    text-decoration: none;
}
.dtree a.node, .dtree a.nodeSel {
    white-space: nowrap;
    padding: 1px 2px 1px 2px;
}
.dtree a.node:hover, .dtree a.nodeSel:hover {
    color: #333;
    text-decoration: underline;
}
.dtree a.nodeSel {
    background-color: #c0d2ec;
}
.dtree .clip {
    overflow: hidden;
}

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原文地址：https://www.cnblogs.com/halo/p/2393503.html