How to deal with select option overlay-JS Tutorial-php.cn

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How to deal with select option overlay

Apr 11, 2018 pm 03:56 PM

option select deal with

This time I will show you how to deal with the option overlay of select. What are the precautions when dealing with the option overlay of select? The following is a practical case, let's take a look.

&lt;!DOCTYPE html&gt;
&lt;html lang=&quot;en&quot;&gt;
&lt;head&gt;
 &lt;meta charset=&quot;UTF-8&quot;&gt;
 &lt;title&gt;layui-下拉框联动测试&lt;/title&gt;
 &lt;link rel=&quot;stylesheet&quot; href=&quot;layui/css/layui.css&quot; rel=&quot;external nofollow&quot; &gt;
&lt;/head&gt;
&lt;body&gt;
&lt;p id=&quot;wrap&quot;&gt;
 &lt;p class=&quot;layui-form&quot; lay-filter=&quot;merchantForm&quot;&gt;
 &lt;p class=&quot;layui-form-item&quot;&gt;
 &lt;label class=&quot;layui-form-label&quot;&gt;选择框&lt;/label&gt;
 &lt;p class=&quot;layui-input-block&quot;&gt;
  &lt;select name=&quot;city&quot; lay-verify=&quot;required&quot; id=&quot;test1&quot; lay-filter=&quot;test1&quot;&gt;
  &lt;option value=&quot;0&quot;&gt;时间&lt;/option&gt;
  &lt;option value=&quot;1&quot;&gt;金额&lt;/option&gt;
  &lt;/select&gt;
 &lt;/p&gt;
 &lt;/p&gt;
 &lt;p class=&quot;layui-form-item&quot;&gt;
 &lt;label class=&quot;layui-form-label&quot;&gt;选择框&lt;/label&gt;
 &lt;p class=&quot;layui-input-block&quot;&gt;
  &lt;select name=&quot;city&quot; lay-verify=&quot;required&quot; id=&quot;test2&quot; lay-filter=&quot;test2&quot;&gt;
  &lt;option value=&quot;&quot;&gt;请选择规则名称&lt;/option&gt;
  &lt;/select&gt;
 &lt;/p&gt;
 &lt;/p&gt;
&lt;/p&gt; 
&lt;button id=&quot;btn&quot;&gt;确定&lt;/button&gt;
&lt;/body&gt;
&lt;script src=&quot;layui/layui.all.js&quot;&gt;&lt;/script&gt;
&lt;script src=&quot;layui/jquery-1.8.3.min.js&quot;&gt;&lt;/script&gt;
&lt;script&gt;
//后台传过来的数据
var data=[
 {unitType:0,ruleName:'时间规则11',amount:1100,money:1100},
 {unitType:0,ruleName:'时间规则12',amount:1200,money:1200},
 {unitType:0,ruleName:'时间规则13',amount:1300,money:1300},
 {unitType:1,ruleName:'金额规则21',amount:2100,money:2100},
 {unitType:1,ruleName:'金额规则22',amount:2200,money:2200},
 {unitType:1,ruleName:'金额规则23',amount:2300,money:2300},
];
//初始化默认为时间类型以及对应的时间规则
layui.use('form', function(){
 var form = layui.form;
  $('#test2').html('');
  var html='';
  $.each(data,function(i,e){
   if(e.unitType==0)
    html+=`&lt;option data-type=&quot;${e.unitType}&quot;&gt;${e.ruleName}&lt;/option&gt;`;
  })
  $('#test2').append(html);
  form.render('select'); 
})
//动态二级联动
layui.use('form', function(){
 var form = layui.form;
  form.on('select(test1)', function(obj){
  $('#test2').html('');
  var html='';
  if(obj.value==0){
   $.each(data,function(i,e){
    if(e.unitType==obj.value)
     html+=`&lt;option data-type=&quot;${e.unitType}&quot;&gt;${e.ruleName}&lt;/option&gt;`;
   })
   $('#test2').append(html);
  }else if(obj.value==1){
   $.each(data,function(i,e){
    if(e.unitType==obj.value)
    html+=`&lt;option data-type=&quot;${e.unitType}&quot;&gt;${e.ruleName}&lt;/option&gt;`;
   })
   $('#test2').append(html);
  }
  form.render('select');
 });
})
//二级联动完毕后获取对应的规则数据
$('#btn').click(function(){
 var thisValue=data.find((v)=&gt;v.ruleName==$('#test2').val());
 console.log(thisValue); 
})
&lt;/script&gt;
&lt;/html&gt;

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I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!