How to make same date format for whole C sharp windows project.

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I am trying to develop a software project, i want my whole project to use the same date format no matter what system date format is even if i use DateTime.Now. Help me please give suggestion or solution anything.

What I have tried:

String.Format("{0:dd-MM-yyyy}", dt);

i use this but i don't want to write this code everytime i use date

Posted 25-Jul-17 4:41am

varuncodee

Updated 25-Jul-17 4:59am

PIEBALDconsult

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PIEBALDconsult 25-Jul-17 11:02am

Please don't, the user will expect your application to use the format he has specified via the Operating System and may be quite upset if your application doesn't honor that choice -- I know I would be.
Bear in mind also, that the International Standard is ISO 8601 -- YYYY-MM-DD

varuncodee 6-Aug-17 11:54am

At first they were using DD-MM-YYYY format so all date store in database in same format and after sometime somebody by mistake changed system date format to MM/DD/YYYY so database contain to different type of format. so they are facing problem when to type of date show in crystal report or when they search some record by date it won't give result after date is changed.

PIEBALDconsult 6-Aug-17 12:05pm

I sure hope you are not storing dates as strings. If you are; you're screwed.

BillWoodruff 25-Jul-17 14:18pm

Why do you want to control the format ? Are you expecting multiple users in different cultures ?

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OriginalGriff · Answer 1 · 2017-07-25T04:51:00

You don't really have a choice: a DateTime value doesn't have a format at all, it's stored as a number of ticks since a fixed point in the past. It only gets a format when you decide to convert it to a string for display. And if you don't specify a format it uses the current PC culture.

You could set the default culture for your application:

CultureInfo.DefaultThreadCurrentCulture = new CultureInfo("en-GB");

And that would force the default format to match that culture, but ... that would also affect the default culture used for parsing user input dates so it's probably a bad idea.

F-ES Sitecore · Answer 2 · 2017-07-25T04:56:00

When you ask .net to convert a date to a string without giving it a format it uses the ShortDatePattern, so you'd have to change this either by changing the OS settings (which I'm guessing you can't do) or by doing it in code;

asp.net - How to change the data format for the current culture so that it applies to the entire web application - Stack Overflow[^]

This is fairly bad practice though, you're better using explicit formats that you get from a config setting\helper function\extension method\whatever even if it does mean more code.

public static class MyExtensions
{
    public static string ToCustomDate(this DateTime dt)
    {
        return dt.ToString("dd-MM-yyyy");
    }
}

DateTime.Now.ToCustomDate()

Priyabrata Maiti · Answer 3 · 2017-07-25T04:49:00

Solution 1

Hi
During login you call below function it will help you.

C#

public string NewDateFormat(string InputDate, string Format)
{
    var CurrentDate = DateTime.Parse(InputDate);
    return CurrentDate.ToString(Format);
}

Posted 25-Jul-17 4:49am

Priyabrata Maiti

How to make same date format for whole C sharp windows project.

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