How to dynamically operate table rows with jquery (with code)-JS Tutorial-php.cn

How to dynamically operate table rows with jquery (with code)

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Release： 2018-04-25 17:55:18

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This time I will bring you the method of dynamically operating table rows in jquery (with code). What are the precautions for dynamically operating table rows in jquery? Here is a practical case, let’s take a look.

<script src="jquery/jquery-1.3.1.js"></script>
<style type="text/css">
body{background:#FFFFFF;}
</style>
</head>
<body>
<script>
 $(function(){
 var show_count = 20;   //要显示的条数
 var count = $("input:text").val();    //递增的开始值，这里是你的ID
 var fin_count = parseInt(count) + (show_count-1);   //结束递增的条件
 $("#btn_addtr").click(function(){
 if(count < fin_count)    //点击时候，如果当前的数字小于递增结束的条件
 {
 $("tr:eq(1)").clone().appendTo("table");   //在表格后面添加一行
 $("tr:last td input:first").val(++count);   //改变添加的行的ID值。
 }
 });
 });
 function deltr(){
 var length=$("tr").length;
 if(length<=2){
 alert("至少保留一行");
 }else{
 $("tr:last").remove();
 }
 }
</script>
<input type="button" id="btn_addtr" value="增行">
<table id="dynamicTable" width="700" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td height="30" align="center" bgcolor="#CCCCCC">ID</td>
    <td align="center" bgcolor="#CCCCCC">Username</td>
    <td align="center" bgcolor="#CCCCCC">Usertype</td>
    <td align="center" bgcolor="#CCCCCC">Other</td>
 <td></td>
  </tr>
  <tr>
    <td height="30" align="center"><input type="text" size="2" value="1" /></td>
    <td align="center"><input type="text" name="username" /></td>
    <td align="center">
      <select name="type">
    <option value="1">Administrator</option>
    <option value="2">Guest</option>
      </select>
    </td>
    <td align="center"><input type="text" name="username2" /></td>
 <td><input type="button" id="btn_deltr" onclick="deltr()" value="删行"></td>
  </tr>
</table>
</body>

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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!