CODEWITHSUNDEEP
c#datetime
Janak Vaghasiya
Janak Vaghasiya

Reputation: 167

string to date conversion not working in .NET Core

when i try to convert string to date following exception occured

FormatException: String '11/17/2020 3:23 PM' was not recognized as a valid DateTime.

my code is ...

public class PaperDTO
{
     ...
    [DeadLineValidate(maxday: 62, ErrorMessage = "please specify valid date maximum 62 days are valid")]
    public string DeadLine { get; set; }
    ...
}

public class DeadLineValidate : ValidationAttribute
{
    public DeadLineValidate(int maxday){ Maxday = maxday; }

    public int Maxday { get; }

    public override bool IsValid(object value)
    {
        var date = DateTime.ParseExact(value as string, "MM/dd/yyyy hh:mm tt", CultureInfo.InvariantCulture);
        return DateTime.Today <= date && date <= DateTime.Today.AddDays(Maxday);
    }
}

if i use in my action method...

Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.InvariantCulture;

then it works fine but in this approach i have to change culture of thread just for date conversion and unnecessarily i have to write extra code in action method of controller

does anyone have any idea regarding this ?

Upvotes: 0

Views: 442

Answers (1)

Peter B
Peter B

Reputation: 24147

Your date pattern requires 2 digits for the hour, but your value has only 1 digit. Try this date pattern instead, it will support both 1 and 2 digits:

"MM/dd/yyyy h:mm tt"

Note that the same issue (and the same solution) might apply for the Month and Day values.

Upvotes: 2

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