html5 datalist 选中option选项后的触发事件

唐玉奎 發表於 2019-5-27 17:36:00

html5 datalist 选中option选项后的触发事件

参考博客:  https://blog.csdn.net/qishuixian/article/details/78427951
最近一段时间用到了html5中datalist, 对选择的option选项获取对应的属性值. 
<div class="cnblogs_code">
<pre></pre>
<div class="cnblogs_code">
<pre><!DOCTYPE HTML>
<html>
<body>
<script src="jquery-1.12.4.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
function inputSelect(){
var input_select = $("#input").val();
var after_value = input_select.split(".");
var new_value = after_value[0] + "." + after_value[1] + "." + after_value[2] + ".xxx";
$("#input").val(new_value);
var option_length = $("#netsegments").find("option").length;
var data_id = '';
var firstIp = 1;
var lastIp = 255;
for(var i = 0; i < option_length; i++){
 var option_value = $("option").eq(i).attr('data-value');
 if(input_select == option_value){
 data_id = $("option").eq(i).attr('data-id');
 firstIp = $("option").eq(i).attr('firstIp');
 lastIp = $("option").eq(i).attr('lastIp');
 break;
 }
}
console.log("input_select:" + input_select + ",option_length:" + option_length);
console.log("data_id:" + data_id + ",firstIp:" + firstIp + ",lastIp:" + lastIp);
};</script>
<input list="netsegments" id="input" onchange="inputSelect()" placeholder="xxx.xxx.xxx.xxx" />
<datalist id="netsegments">
<option label="10.0.23.xxx" value="10.0.23.1~62" data-value="10.0.23.1~62"data-id="1" firstIp="1" lastIp="62" />
<option label="10.0.23.xxx" value="10.0.23.64~127"data-value="10.0.23.64~127" data-id="2" firstIp="63" lastIp="127" />
<option label="10.0.23.xxx" value="10.0.23.129~192" data-value="10.0.23.129~192" data-id="3" firstIp="129" lastIp="192" />
</datalist>
</body>
</html></pre>
</div>
<pre></pre>
<pre> 测试结果如下: 当选择第二个选项时候, console打印出结果: </pre>
  input_select:10.0.23.64~127,option_length:3   data_id:2,firstIp:63,lastIp:127

</div>
 <img src="https://img2018.cnblogs.com/blog/1274257/201905/1274257-20190527195730509-1949449126.png"><img src="https://img2018.cnblogs.com/blog/1274257/201905/1274257-20190527200048513-13216921.png">
 

</div>
<div id="MySignature" role="contentinfo">
努力做一个伪程序员, 不管道路有多么的艰苦...... 
来源：https://www.cnblogs.com/xumBlog/p/10931989.html

頁: [1]

琼殿技术论坛's Archiver

html5 datalist 选中option选项后的触发事件