Different DateTimeFormat for the same culture in different machines

Question

I\'m having a problem when I deploy my web application in different servers. There seems to be an inconsistency in some DateTimeFormat patterns, like Shor

Answer 1

The solution is to always create CultureInfo object using the constructor:

CultureInfo(string name, bool useUserOverride)

and passing false for useUserOverride parameter.

From MSDN:

useUserOverride: A Boolean that denotes whether to use the user-selected culture settings (true) or the default culture settings (false).

Basically using false force the CultureInfo to use the default settings (separators, ...) from the specified culture instead of using the one defined in the system.

Consider also that different operating system can produce different results in some (small) cases. Running the code below (.NET 4.5):

CultureInfo ci = new CultureInfo("it-IT", false);

String date = DateTime.Now.ToString(ci);
Console.WriteLine(date);
Console.WriteLine("Time Separator: " + ci.DateTimeFormat.TimeSeparator);
Console.WriteLine("Date Separaotr: " + ci.DateTimeFormat.DateSeparator);
Console.ReadKey();

On Win 7 produce:

29/10/2013 14:12:33
Time Separator: :
Date Separaotr: /

while running it on Win 8 produce:

29/10/2013 15.08.43
Time Separator: .
Date Separaotr: /

Answer 2

in control panel go to regional and language options,select portuges(brazil), in formats go to customize this format, check the date configuration.

Answer 3

Actually, I was trying to use the code above in the wrong place in the Global.asax file.

I managed to override the ShortDatePattern for the entire aplication by putting the code in the Application_BeginRequest method:

protected void Application_BeginRequest()
{
    CultureInfo info = new CultureInfo(System.Threading.Thread.CurrentThread.CurrentCulture.ToString());
    info.DateTimeFormat.ShortDatePattern = "dd/MM/yyyy";
    System.Threading.Thread.CurrentThread.CurrentCulture = info;
}