asp.net 中 mm/dd/yyyy 格式的 Javascript 日期验证
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Javascript Date validation for mm/dd/yyyy format in asp.net
提问by Vishal Avhad
I want to validate BirthDate, which should be in "mm/dd/yyyy" format, on the client side.
我想在客户端验证出生日期，它应该是“mm/dd/yyyy”格式。
I have tried it as following, but it is not working properly:
我已经尝试过如下，但它不能正常工作：
$("#btnUpdateEditCB3").click(function(event) {
var txtBirthDate = $('#<%= txtBirthDateCB3.ClientID %>').val();
var txtNickName = $('#<%= txtNickNameCB3.ClientID %>').val();
if (txtBirthDate != "") {
if (txtBirthDate.match(/^(?:(0[1-9]1[012])[\/.](0[1-9][12][0-9]3[01])[\/.](1920)[0-9]{2})$/)) {
alert("Please enter date in mm/dd/yyyy format");
$('#<%= txtBirthDateCB3.ClientID %>').focus();
return false;
}
}
});
回答by devson
Below links explains the same...see if it helps you.
下面的链接解释了相同的...看看它是否对你有帮助。
回答by Salman A
I recommend that you use the JavaScript Date() object along with regular expressions to validate a date. You can use a variant of this codeas follows:
我建议您使用 JavaScript Date() 对象和正则表达式来验证日期。您可以使用此代码的变体，如下所示：
function ValidateCustomDate(d) {
var match = /^(\d{2})\/(\d{2})\/(\d{4})$/.exec(d);
if (!match) {
// pattern matching failed hence the date is syntactically incorrect
return false;
}
var month = parseInt(match[1], 10) - 1; // months are 0-11, not 1-12
var day = parseInt(match[2], 10);
var year = parseInt(match[3], 10);
var date = new Date(year, month, day);
// now, Date() will happily accept invalid values and convert them to valid ones
// therefore you should compare input month/day/year with generated month/day/year
return date.getDate() == day && date.getMonth() == month && date.getFullYear() == year;
}
console.log(ValidateCustomDate("1/01/2011")); // false
console.log(ValidateCustomDate("01/1/2011")); // false
console.log(ValidateCustomDate("01/01/2011")); // true
console.log(ValidateCustomDate("02/29/2011")); // false
console.log(ValidateCustomDate("02/29/2012")); // true
console.log(ValidateCustomDate("03/31/2011")); // true
console.log(ValidateCustomDate("04/31/2011")); // false
回答by Muthu
Is there any specific reason for not using datepicker formatting? Suggest using a jquery datepicker where you can set the formats.
不使用日期选择器格式有什么具体原因吗？建议使用 jquery 日期选择器，您可以在其中设置格式。
回答by Deepak Kothari
If you want to validate date in mm/dd/yyyy format using javascript you can use the following snippet of code.
如果您想使用 javascript 以 mm/dd/yyyy 格式验证日期，您可以使用以下代码片段。
txtdate is having textbox id
txtdate 有文本框 ID
Consider the below code.
考虑下面的代码。
function isValidDate(txtdate) {
var txtDate = "#" + txtdate;
var dateString = $(txtDate).val();
var date_regex = /^(0[1-9]|1[0-2])\/(0[1-9]|1\d|2\d|3[01])\/(19|20)\d{2}$/;
if (!(date_regex.test(dateString))) {
alert("Date Must Be in mm/dd/yyyy format");
}}
