jQuery EasyUI 为Combo,Combobox添加清除值功能的实例

效果图：图标(function($){//初始化清除按钮functioninitClear(target){varjq=$(target);varopts=jq.data('combo')

效果图：

图标

(function($){
 
 //初始化清除按钮
 function initClear(target){
 var jq = $(target);
 var opts = jq.data('combo').options;
 var combo = jq.data('combo').combo;
 var arrow = combo.find('span.combo-arrow');
 
 var clear = arrow.siblings("span.combo-clear");
 if(clear.size()==0){
 //创建清除按钮。
 clear = $('<span class="combo-clear" style="height: 20px;"></span>');
 
 //清除按钮添加悬停效果。
 clear.unbind("mouseenter.combo mouseleave.combo").bind("mouseenter.combo mouseleave.combo",
 function(event){
 var isEnter = event.type=="mouseenter";
 clear[isEnter ? 'addClass' : 'removeClass']("combo-clear-hover");
 }
 );
 //清除按钮添加点击事件，清除当前选中值及隐藏选择面板。
 clear.unbind("click.combo").bind("click.combo",function(){
 jq.combo("setValue","").combo("setText","");
 jq.combo('hidePanel');
 });
 arrow.before(clear);
 };
 var input = combo.find("input.combo-text");
 input.outerWidth(input.outerWidth()-clear.outerWidth());
 
 opts.initClear = true;//已进行清除按钮初始化。
 }
 
 //扩展easyui combo添加清除当前值。
 var oldResize = $.fn.combo.methods.resize;
 $.extend($.fn.combo.methods,{
 initClear:function(jq){
 return jq.each(function(){
 initClear(this);
 });
 },
 resize:function(jq){
 //调用默认combo resize方法。
 var returnValue = oldResize.apply(this,arguments);
 var opts = jq.data("combo").options;
 if(opts.initClear){
 jq.combo("initClear",jq);
 }
 return returnValue;
 }
 });
}(jQuery));

html代码

<select id="myselect" panelHeight="auto" style="width: 102px;" editable="true" name="itcast">
 <option value="0">成都</option>
 <option value="1">传智播客</option>
 <option value="2">姚欣</option>
 <option value="3">小星星</option>
</select>

js代码

$('#myselect').combobox({
 required : true,
 editable : false
}).combobox("initClear");

css样式

.combo-clear {
 background-color: #E0ECFF;
 width: 18px;
 height: 20px;
 overflow: hidden;
 display: inline-block;
 vertical-align: top;
 cursor: pointer;
 opacity: 0.6;
 filter: alpha(opacity=60);
 background: url('images/combo_clear.png') no-repeat center center;
}
.combo-clear-hover {
 opacity: 1.0;
 filter: alpha(opacity=100);
 background-color: #eaf2ff;
}

以上这篇jQuery EasyUI 为Combo,Combobox添加清除值功能的实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。

easyui combobox 清除