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jquery自定义下拉列表示例_表单特效

WBOY
发布: 2016-05-16 16:51:22
原创
1023 人浏览过

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:

jquery自定义下拉列表示例_表单特效

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:

复制代码 代码如下:

(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:

    复制代码 代码如下:

    $("#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();   
                   })
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