验证未来日期的正则表达式
验证未来日期的正则表达式
提问于 2013-06-18 09:47:21
我正在用asp.net开发mvc 4，我想验证出生日期，这样用户就不能选择未来的日期了，我该怎么做呢？
<script>
$(document).ready(function () {
$("#DOB").datepicker({
dateFormat: "m/d/yy",
});
});
</script>
@Html.TextBox("DOB", Model.DOB.ToString("MM/dd/yyyy"), new { @class = "cssClass" })我不希望服务器端验证，我想在客户端验证。我能用正则表达式验证它吗？
解决方案：
$(document).ready(function () {
$("#DOB").datepicker({
dateFormat: "m/d/yy",
}).change(function () {
var date = new Date($("#DOB").val());
var now = new Date();
if (date > now) {
alert("Please enter valid date.");
}
});
});回答 1
Stack Overflow用户
发布于 2013-06-18 10:37:08
为日，月，年制作3个字段，就像几乎所有的在线站点一样。
用值填充字段。
然后，你可以根据你的意愿，把这一年降下来。
您可以简单地使用change事件来验证其他字段。
此外，您可以简单地使用日期+月份+年份，生成日期值，并与your_date <=新日期()进行比较。
否则，您将不得不担心字符串可能具有的所有不同的日期格式，这使得无法对其进行验证。
见这里：
就像这样：
<!doctype html>
<html itemscope="itemscope" itemtype="http://schema.org/WebPage">
<head>
<title>Hello</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" ></script>
<script type="text/javascript">
function isLeapYear(iYear)
{
return (new Date(iYear, 1, 29).getMonth() == 1);
}
function getMonthLength(month, year)
{
month = month - 1;
var monthStart = new Date(year, month, 1);
var monthEnd = new Date(year, month + 1, 1);
var monthLength = (monthEnd - monthStart) / (1000 * 60 * 60 * 24);
return monthLength;
}
function PopulateDayDropdown(iMonth, iYear)
{
for (i = 1; i < getMonthLength(iMonth, iYear) + 1; i++)
{
$('<option/>').val(i).html(i).appendTo('#selDay');
}
}
function PopulateMonthDropdown()
{
var months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
for (i = 0; i < months.length; i++)
{
$('<option/>').val(i + 1).html(months[i]).appendTo('#selMonth');
}
}
function PopulateYearDropdown()
{
var iCurYear = new Date().getFullYear();
for (i = iCurYear - 100; i <= iCurYear; i++)
{
$('<option/>').val(i).html(i).appendTo('#selYear');
}
//$('select option[value="' + iCurYear + '"]').html();
$('#selYear option[value="' + iCurYear + '"]').attr("selected", "selected")
}
$(document).ready(function ()
{
// Handler for .ready() called.
PopulateDayDropdown(1, new Date().getFullYear());
PopulateMonthDropdown();
PopulateYearDropdown();
//$('select[name="month"]').change(function()
$('select').change(function ()
{
//alert("2012 leap year? " + isLeapYear(2012) + "\n" + "2013 leap year? " + );
var iDay = $("#selDay").val();
var iMonth = $("#selMonth").val();
var iYear = $("#selYear").val();
if (this.id == "selMonth" || this.id == "selYear")
{
$('#selDay').empty();
PopulateDayDropdown(iMonth, iYear);
$('#selDay option[value="' + iDay + '"]').attr("selected", "selected")
}
if (iDay > getMonthLength(iMonth, iYear))
{
var months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
alert("There is no " + iDay + "th " + months[iMonth - 1] + ".");
}
var d = new Date(iYear, iMonth - 1, iDay, 0, 0, 0, 0);
if (d > new Date())
{
$('#selDay option[value="' + 1 + '"]').attr("selected", "selected")
$('#selMonth option[value="' + 1 + '"]').attr("selected", "selected")
alert("Future dates are not allowed (values have been reset to January 1st).");
return;
}
alert("New date of birth: " + d);
});
});
</script>
</head>
<body>
<form action="registration.php" method="post">
<p>Select date:</p>
<select id="selDay" name="day">
</select>
<select id="selMonth" name="month">
<!--
<option value="January">January</option>
<option value="February">February</option>
<option value="Mars">Mars</option>
<option value="April">April</option>
<option value="May">May</option>
<option value="June">June</option>
<option value="July">July</option>
<option value="September">September</option>
<option value="October">October</option>
<option value="November">November</option>
<option value="December">December</option>
-->
</select>
<select id="selYear" name="year">
</select>
<br/><br/>
<input type="submit" value="Submit" />
</form>
</body>
</html>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/17165658
复制相关文章
相似问题
腾讯云开发者
