实时监控input框,实现输入框与下拉框联动的实例

如图：

html代码

<tr>
 <th scope="row">奖励类型：</th>
 <td><input value="" type="text" name="item" id="reward" style="width: 60px;height: 20px;" placeholder="输入关键字" />
  <select name="reward_id" id="reward_id">
   <option value="">---请选择---</option>
   {foreach $reward as $value}
   <option value="{$value['material_id']}">{$value['material_name']}</option>
   {/foreach}
  </select>
 </td>
</tr>

JQuery代码

<script type="text/javascript">
 $('#reward').bind('input propertychange', function() {reward();});
 function reward()
 {
  var search = $("#reward").val();
  $.ajax({
   type:"get",
   url:"/mall/config_commodity_info/search_commodity_info",
   data:{search:search},
   success:function(select){
     var reward_id = $("#reward_id");
     if (select) {
     $("option",reward_id).remove();
     var obj = JSON.parse(select);
     for (var key in obj) {
      var option = "<option value='"+key+"'>"+obj[key]+"</option>";
      reward_id.append(option);
     }
     }
   }
 });
 }
</script>

PHP代码

public function add_alms()
{
 $reward = $this->materials->selReward();
 $this->assign('reward',$reward);
 return $this->fetch();
}
public function do_add_alms()
{
 $data = Request::instance()->param();
 $this->alms->addAlms($data);
}

以上这篇实时监控input框,实现输入框与下拉框联动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。