DateTime.TryParse 没有文化

Question

I want to check whether date is valid to parse. But when i tried with below logic, it is falling for the valid date (eg: ‎3‎/‎10‎/‎2020). I am receiving this myDate via ajax request.

I tried by changing culture, but still, it didn't work

DateTime validMyDate;
if(DateTime.TryParse(myDate, CultureInfo.CurrentCulture, System.Globalization.DateTimeStyles.None, out validMyDate)){}

Appriciate your kind help

Edited: Please find the ajax code at here

//fileds

<input name="StartDate" id="StartDate" type="hidden" value="3/10/2020 12:00:00 AM"  data-val="true">
<input name="EndDate" id="EndDate" type="hidden" value="3/26/2020 12:00:00 AM"  data-val="true">

// ajax call
$.get(domainUrl + "Controller/Action",
            {
              strartDate: dateFormatter.fomat($('#StartDate').val(), "mm/dd/yyyy"),
                endDate:  dateFormatter.fomat($('#EndDate').val(), "mm/dd/yyyy");
            },
            function (result) {

            }).fail(function (error) {

            });


// date formatter
var dateFormatter = {
    fomat: function (date, format) {
        var year = date.getFullYear();
        var month = date.getMonth() < 10 ? '0' + date.getMonth() : date.getMonth();
        var day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate();
        var newDate;
        switch (format) {
            case "dd/mm/yyyy": newDate = day + "/" + month + "/" + year;
                break;            
            default: newDate = year + "-" + month + "-" + day;
        }
        return newDate;
    }
}       

Please note : this format function is added, because .val() didn't work at the begging, so i format it again to check whether it is working.

Answer 1

This code definitely works:

if (DateTime.TryParseExact("3/10/2020","d/M/yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out DateTime validStartDate))
{
}

But there is something rotten with your string. If I copy "3/10/2020" from your comment above, it doesn't work. If I write it myself it works. Your string must be in some weird encoding, but I can't put my finger on what it is.

EDIT: To remove the invisible characters do this:

var str = "‎3‎/‎10‎/‎2020";
str = str.Replace("\u200E","");
if (DateTime.TryParseExact(str,"d/M/yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out DateTime validStartDate))
{
}

but it will be a hack. The problem should be changed at the other end.