JS动态添加标签并取值
大概意思就是我有两个下拉列表框,select1和select2
里边存的是数字1-9
我选中select1的值为3 则页面出现3个text然后向其text中输入值 单击按钮 取出text的值..
用JS 大神们有好例子么?
[解决办法]
用js拼接text个数，比如页面放一个<label id='lb'></label>
根据所选select个数for循环lb.innerHtml+=<input type='text' id='text_自定义'/>,然后根据text的不同ID把所有自定义的text值放到一个隐藏的text中用逗号隔开，然后后台split去拿每个值
[解决办法]
<body>
<input type="button" value="input取值" onclick="getInputsText();" />
<select id="curSelect" onchange="selectChanged();" >
<option></option>
<option value='1'>1</option>
<option value='2'>2</option>
<option value='3'>3</option>
<option value='4'>4</option>
<option value='5'>5</option>
</select></body>
function selectChanged() {
//父容器
var inputParent = document.getElementsByTagName("body")[0];
var select = document.getElementById("curSelect");
var selectValue = select.options[select.selectedIndex].value;
if (selectValue !== "") {
for (var i = 0; i < selectValue; i++) {
var input = document.createElement("input");
inputParent.appendChild(input);
}
}
}
//input 取值
function getInputsText() {
//父容器
var inputParent = document.getElementsByTagName("body")[0];
var inputs = inputParent.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].type == 'text') {
alert(inputs[i].value);
}
}
}
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
function Produce(val) {
$("#dvcontent").html(" ");
arr = [];
for (var i = 0; i < parseInt(val); i++) {
arr.push("<input type='text' class='txtcontent' />")
}
$("#dvcontent").html(arr.join(' '));
}
function Myalert() {
$(".txtcontent").each(function () { alert($(this).val()); });
}
</script>
</head>
<body>
<form id="form1" runat="server">
<select id="slt1" onchange="Produce(this.value)">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
<option>6</option>
<option>7</option>
</select>
<div id="dvcontent">
</div>
<input type="button" onclick="Myalert()" value="ClickMe" />
</form>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="js/jquery.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#sel").change(function () {
var shu = $(this).val();
$("#in").html(""); //清空里面的值,为了生成指定数量input
for (var a = 1; a <= shu; a++) {
$("#in").append("<input id='txt" + a + "' type='text' >");
}
});
$("#quzhi").click(function () {
var s = $("#in").find('input');
for (var b = 0; b < s.length; b++) {
alert(s[b].value);
}
})
})
</script>
</head>
<body>
<form id="form1" runat="server">
<input id="Text1" type="text" />
<div>
<select id="sel">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
</select>
<div id="in">
</div>
<input id="quzhi" type="button" value="取值" />
</div>
</form>
</body>
</html>