自从上次做了JQ自定义分页插件和表格插件后,就没在自定义过插件了,这一个月都在用linq和ef,基本前端都没怎么去碰了,今天有个同事说有个项目需要在下拉框里面带有复选框,本来想网上找下插件的,一想,其实这功能也并不难,于是就自己做了一个,也趁机再次熟悉下JQ自定义插件吧,好了,先附上效果图先:
看上去没怎么难吧,其实就是强化JQ,免得太久没用,生疏了。好了。附上我的代码:
(function($){
var option={
isEdit:false, //是否可以编辑:默认是否
Listheight:200, //下拉框高度
ListWidth:0, //下拉框长度
//数据源
data:[
{"value":1,"text":"选择1"},
{"value":2,"text":"选择2"},
{"value":3,"text":"选择3"},
{"value":4,"text":"选择4"}
]
}
//开始创建下拉框
function Start(obj)
{
if(!option.isEdit)
{
obj.attr({"readonly":"readonly"});
}
var myList=$("
");
var ul=$("
");
ul.css({"list-style":"none","margin":"0px","padding":"2px"});
myList.css({"border":"1px solid #D9E5F3","position":"absolute","overflow-y":"scroll","background-color":"#fff","font-size":"12px"});
if(option.Listheight {
option.Listheight=200;
}
myList.height(option.Listheight);
if(option.ListWidth {
option.ListWidth=obj.width()
}
myList.width(option.ListWidth);
//默认位置是在创建元素的下方
myList.offset({"top":obj.offset().top+obj.outerHeight(),"left":obj.offset().left});
var data=option.data;
if(data.length>0)
{
for(i=0;i
{ var li=$(""); var ListSon=$(" "); ListSon.change(function(){ if(this.checked) { obj.val(obj.val()+$(this).val()); } else { obj.val(obj.val().replace($(this).val(),"")); } }) myList.mouseover(function(){ myList.show(); }) myList.mouseout(function(){ myList.hide(); }) var span=$(" "); span.text(data[i].text); ListSon.val(data[i].value+";"); li.append(ListSon); li.append(span); ul.append(li); } } myList.append(ul); myList.appendTo("body"); myList.hide(); FoucsShow($(obj),myList); } // 当获取到焦点使出现该下拉框 function FoucsShow(obj,myList) { obj.focus(function(){myList.show()}) } $.fn.createList=function(newoption) { $.extend(option,newoption); Start($(this)); } })(jQuery);
前台调用:
$("#d2").createList({ //数据源 data:[ {"value":"C#","text":"C#"}, {"value":".NET","text":".NET"}, {"value":"Java","text":"Java"}, {"value":"JSP","text":"JSP"}, {"value":"C","text":"C"}, {"value":"C++","text":"C++"}, {"value":"javascript","text":"javascript"}, {"value":"ajax","text":"ajax"}, {"value":"json","text":"json"}, {"value":"xml","text":"xml"}, {"value":"sql server","text":"sql server"}, {"value":"xml","text":"Mysql"}, {"value":"oracle","text":"oracle"}, {"value":"JQuery","text":"JQuery"}, {"value":"Ext js","text":"Ext js"}, {"value":"CSS3","text":"CSS3"}, {"value":"HTML5","text":"HTML5"} ] }); $("#d3").createList(); })