JavaScript日期时间间隔计算
Hi
If you need to validate the date span between the two input dates, I would like to suggest you try the following demo, which works fine on our lab:
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function strDateTime(str) {
var r = str.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
if (r == null) return false;
var d = new Date(r[1], r[3] - 1, r[4]);
return (d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4]);
}
function btnValidate_onclick() {
var strfrom = document.getElementById("txtfrom").value;
var strto = document.getElementById("txtto").value;
if (!strDateTime(strfrom) && strDateTime(strto)) {
alert("the date format is not valid");
}
else {
if (DateDiff(strto, strfrom) > 180) {//180 days
alert("the date span is too big:" + DateDiff(strto, strfrom));
return false;
}
else {
return true;
}
}
}
function DateDiff(sDate1, sDate2) {
var aDate, oDate1, oDate2, iDays
aDate = sDate1.split("-")
oDate1 = new Date(aDate[1] + '-' + aDate[2] + '-' + aDate[0])
aDate = sDate2.split("-")
oDate2 = new Date(aDate[1] + '-' + aDate[2] + '-' + aDate[0])
iDays = parseInt(Math.abs(oDate1 - oDate2) / 1000 / 60 / 60 / 24)
return iDays
}
</script>
</head>
<body style="font-family:Calibri; font-size:14px;">
<form id="form1" runat="server">
<div>
</div>
</form>
<p>
From:
<input id="txtfrom" type="text" />(format: 2009-07-12)</p>
<p>
To:
<input id="txtto" type="text" /></p>
<p>
<input id="btnValidate" type="button" value="Validate" onclick="return btnValidate_onclick()" /></p>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function strDateTime(str) {
var r = str.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
if (r == null) return false;
var d = new Date(r[1], r[3] - 1, r[4]);
return (d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4]);
}
function btnValidate_onclick() {
var strfrom = document.getElementById("txtfrom").value;
var strto = document.getElementById("txtto").value;
if (!strDateTime(strfrom) && strDateTime(strto)) {
alert("the date format is not valid");
}
else {
if (DateDiff(strto, strfrom) > 180) {//180 days
alert("the date span is too big:" + DateDiff(strto, strfrom));
return false;
}
else {
return true;
}
}
}
function DateDiff(sDate1, sDate2) {
var aDate, oDate1, oDate2, iDays
aDate = sDate1.split("-")
oDate1 = new Date(aDate[1] + '-' + aDate[2] + '-' + aDate[0])
aDate = sDate2.split("-")
oDate2 = new Date(aDate[1] + '-' + aDate[2] + '-' + aDate[0])
iDays = parseInt(Math.abs(oDate1 - oDate2) / 1000 / 60 / 60 / 24)
return iDays
}
</script>
</head>
<body style="font-family:Calibri; font-size:14px;">
<form id="form1" runat="server">
<div>
</div>
</form>
<p>
From:
<input id="txtfrom" type="text" />(format: 2009-07-12)</p>
<p>
To:
<input id="txtto" type="text" /></p>
<p>
<input id="btnValidate" type="button" value="Validate" onclick="return btnValidate_onclick()" /></p>
</body>
</html>
Thanks.
