Dis*_*yal 2 javascript php element unique dynamic
您好我试图生成带有文本框和删除按钮的动态div.在表单提交我想要所有动态生成的文本框值,我如何为文本框元素分配唯一的ID.文本框的ID /名称应该是唯一的...以正确获取所有值.请建议..
我的代码:
<HTML>
<HEAD>
<TITLE> Add/Remove dynamic elements</TITLE>
<SCRIPT language="javascript">
function addRow(divId) {
count = 0;
count++;
var parentDiv = document.getElementById(divId);
// create a div dynamically
var eleDiv = document.createElement("div");
eleDiv.setAttribute("name", "olddiv");
eleDiv.setAttribute("id", "olddiv");
// create a textbox dynamically
var eleText = document.createElement("input");
eleText.setAttribute("type", "text");
eleText.setAttribute("name", 'textbox' + count);
eleText.setAttribute("id", "textbox");
// create a delete button dynamically
var eleBtn = document.createElement("input");
eleBtn.setAttribute("type", "button");
eleBtn.setAttribute("value", "delete");
eleBtn.setAttribute("name", "button");
eleBtn.setAttribute("id", "button");
eleBtn.setAttribute("onclick", "deleteRow('button')");
// append new div to parent div
parentDiv.appendChild(eleDiv);
// append textbox & button to new div
eleDiv.appendChild(eleText);
eleDiv.appendChild(eleBtn);
}
function deleteRow(tableID) {
var div = document.getElementById('olddiv');
if (div) {
div.parentNode.removeChild(div);
}
}
</SCRIPT>
<form name="objForm" action="test1.php">
<INPUT type="button" value="Add Row" onclick="addRow('dataTable')" />
<div id="dataTable" width="350px"><INPUT type="text" name="txtData" /></div>
<input type="submit" value="Submit"/>
</form>
您可以保留全局计数变量(在函数divId之外).每次创建新div时,都会向计数器添加1并将其用作文本框的唯一ID.
<script language="javascript">
var globalcount=0;
function addRow()
{
globalcount++;
//the rest
}
</script>
剩下的就像你已经为这个名字做的那样.