本人第一次发表文章,不足之出请大家多多包涵
下面是一个combox的代码
javascript">/// <reference path="../Js/jquery-1.7.2.min.js" />
$.extend({
//下拉列表框
qyjcombox: function (select) {
//这里是初始化
var htmlstr = "<div class=\"boxwrap\"><a class=\"select-tit\" href=\"javascript:;\"><span></span><i></i></a><div class=\"select-items\" style=\"z-index: 1; display: none;\"><ul><li> ├ 房产动态</li></ul></div><i class=\"arrow\" style=\"z-index: 1; display: none;\"></i></div>";
var cbjq = $(select);
//在用户定义的节点中填充我们的combox
cbjq.html(htmlstr);
//并附上class
cbjq.addClass("rule-single-select single-select");
//要复制多次的节点
var copeItem = $("li", select);
//要添加到的父节点
var itemParant = copeItem.parent();
//要复制的节点获取到父节点后马上删除
copeItem.remove();
//下拉选中后显示值的节点
var showText=cbjq.find("span").first();
//这里是列表框的业务逻辑
//记录选项的数组
var list = [];
var isShow = true;
//注册文本框单击事件
$(".select-tit", select).click(HideOrShow);
//显示或者隐藏
function HideOrShow() {
if (isShow) {
ShowList();
} else {
hideList();
}
}
// title 和id 后面的是自定义属性
this.addItem = function (title, id, itemObj) {
//复制节点
var newItem = copeItem.clone();
//给节点附名字
newItem.html(title);
newItem.bind("click", clickEvent);
itemParant.append(newItem);
list.push({
title: title,
id: id,
itemObj: itemObj,
dom: newItem
});
}
//显示下拉列表
function ShowList() {
isShow = false;
$(".select-items", select).css("display", "block");
$(".arrow", select).css("display", "block");
}
//隐藏列表
function hideList() {
isShow = true;
$(".select-items", select).css("display", "none");
$(".arrow", select).css("display", "none");
}
function clickEvent() {
var node = $(this);
showText.html(node.html());
hideList();
}
//注册选项改变事件
this.itemChangeEvent = function (changFunc) {
for (var i = 0; i < list.length; i++) {
//利用函数变量的作用域和this关键字改变来用户调用方便
(function (item) {
//现在这个item被这个匿名函数 独享了 随便你怎么玩
item.dom.bind("click",function (e) {
//触发外部的函数
changFunc.apply(this, [{ title: item.title, id: item.id, itemObj: item.itemObj }, e]);
});
})(list[i]);
//下面是我之前 ie9留下的坏习惯 ie8 只能上面这种写法
//var item = list[i];
//item.dom.bind("click",function(){changFunc.apply(this,{title:item.title,id:item.id}) });
}
}
}
});
接下来就是 取css的环节了
下面是css代码
/* CSS Document */ *{ margin:0; padding:0; list-style:none;font-family: "Microsoft YaHei";} table{ border-collapse:collapse; border-spacing:0; } a{ color:#686f7f; text-decoration:none; } a:link, a:visited{ color:#2A72C5; text-decoration:none; } a:active, a:hover{ color:#0065D9; text-decoration:underline; } .clearer{ clear:both;} /* single-select */ .single-select{ position:relative; display:inline-block; margin-right:5px; vertical-align:middle; cursor:pointer; *float:left; } .single-select .boxwrap{ display:inline-block; vertical-align:middle; } .single-select .select-tit{ position:relative; display:block; padding:5px 38px 5px 10px; min-width:40px; line-height:20px; height:20px; border:solid 1px #eee; text-decoration:none; background:#fff; white-space:nowrap; word-break:break-all; } .single-select .select-tit span{ display:inline-block; color:#333; font-size:12px; vertical-align:middle; } .single-select .select-tit i{ position:absolute; right:0; top:0; display:block; width:28px; height:100%; border-left:1px solid #eee; background:url(images/skin_icons.png) 7px -189px no-repeat #fafafa; } .single-select .select-items{ display:none; position:absolute; left:0; top:45px; /*overflow:hidden;*/ } .single-select .select-items ul{ position:relative; padding:5px; min-width:120px; max-height:280px; border:1px solid #eee; background:#fff; overflow-y:auto; overflow-x:hidden; } .single-select .select-items ul li{ display:block; padding:4px 10px; line-height:20px; font-size:12px; color:#666; white-space:nowrap; cursor:pointer; } .single-select .select-items ul li:hover{ color:#fff; text-decoration:none; background:#16a0d3; } .single-select .select-items ul li.selected{ color:#fff; background:#16a0d3; } .single-select .arrow{ display:none; position:absolute; left:15px; top:35px; width:21px; height:11px; text-indent:-9999px; background:url(images/skin_icons.png) 0 -290px no-repeat; } .single-select.up .select-items{ top:auto; bottom:45px; } .single-select.up .arrow{ top:-13px; background:url(../images/skin_icons.png) 0 -300px no-repeat; }
后来发现里面有图片
background:url(images/skin_icons.png) 改成当前路径就ok了
完工就可以测试了
测试html
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<link href="combox/combox.css" rel="stylesheet" />
<script src="Js/jquery-1.7.2.min.js"></script>
<script src="combox/combox.js"></script>
<script>
$(window).ready(function () {
var com = new $.qyjcombox("#cm");
com.addItem("测试1", 1);
com.addItem("测试2", 2);
com.addItem("测试3", 3);
com.itemChangeEvent(function (data) {
alert("你单击了:"+data.title+" id:"+data.id);
});
});
</script>
</head>
<body>
<div id="cm"></div>
</body>
</html>
效果图 环境 360浏览器 内核 ie7
控件下载地址 :http://pan.baidu.com/s/1c0cxQ28
工具下载地址:http://pan.baidu.com/s/1qWC7lRu