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Best way to validate a date string in C#


Best way to validate a date string in C#

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Best way to validate a date string in C#
Tag : chash , By : Antony Briggs
Date : November 29 2020, 04:01 AM

With these it helps The year 201 being invalid is business logic - if you want to have logical safeguards on your imported data (and you should), do them explicitly. With C# you can easily add an extension method to DateTime if you want, something like
public static DateTime ParseDateWithSanity(this DateTime, string date)
{
    dt = DateTime.Parse(date);

    if dt.Year < 1900
    {

      throw BadInputException()
    }
}

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How to validate string date is in the ISO 8601 date format before applying correct NSDateFormatter?


Tag : objective-c , By : Jonathan
Date : March 29 2020, 07:55 AM
I wish this helpful for you The easiest way to validate the format is to actually try converting the string using your date formatter. If it returns nil then the format isn't a match and you can try the other format.

Best Way To Validate a Date String With a Dynamic Date Format


Tag : javascript , By : Jet Thompson
Date : March 29 2020, 07:55 AM
I hope this helps you . There is a dynamic date format where user can specify it somewhere. I need to validate the user input (most likely via js) on a date field when he input it manually (not via datepicker).
var dateFormat = "DD-MM-YYYY";
moment('30-01-20167',dateFormat, true).isValid();  // false;
moment('30-01-2016',dateFormat, true).isValid();  // true;

What is best ways to validate string date to be valid date according to format?


Tag : java , By : Joe Sweeney
Date : March 29 2020, 07:55 AM
may help you . If you are using java 8 then DateTimeFormatter is what you are looking for. The link to javadoc also contains sample code and a number of predefined formats. Besides you can also define your own.
Here is some code, an example from the same link:
LocalDate date = LocalDate.now();
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy MM dd");
String text = date.format(formatter);
LocalDate parsedDate = LocalDate.parse(text, formatter);

Validate Date FORMAT (not date string) using MomentJS?


Tag : validation , By : Carlos Galdino
Date : March 29 2020, 07:55 AM
may help you . I've seen that you can use an ".isValid()" function to check that a given string is in a date format: , Use the following function to validate your format.
validFormat = function(inputFormat){
  var validation = moment(moment('2017-06-17').format(inputFormat)).inspect(); 
  if(validation.indexOf('invalid') < 0) 
    return true; 
  else 
    return false;
}
validFormat('YYYY MM DD')

Unable to validate a date string in ISO 8601 date format


Tag : .net , By : Gianluca Riccardi
Date : March 29 2020, 07:55 AM
it fixes the issue
I want to ensure the date is a valid ISO 8601 date format. This can be true even when time/fractions/timeszones are omitted.
Dim time = "2018-01-17T11:12:42.0544453+00:00"
Dim validDate = Date.TryParseExact(time, "O", CultureInfo.InvariantCulture, DateTimeStyles.None, dt)
Dim time = Date.UtcNow.ToString("o", System.Globalization.CultureInfo.InvariantCulture)
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