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File.GetCreationTime Method

Returns the creation date and time of the specified file or directory.

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)

public static DateTime GetCreationTime (
	string path
)
public static DateTime GetCreationTime (
	String path
)
public static function GetCreationTime (
	path : String
) : DateTime
Not applicable.

Parameters

path

The file or directory for which to obtain creation date and time information.

Return Value

A DateTime structure set to the creation date and time for the specified file or directory. This value is expressed in local time.

Exception typeCondition

UnauthorizedAccessException

The caller does not have the required permission.

ArgumentException

path is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.

ArgumentNullException

path is a null reference (Nothing in Visual Basic).

PathTooLongException

The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.

NotSupportedException

path is in an invalid format.

The path parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory.

If the file described in the path parameter does not exist, this method returns 12:00 midnight, January 1, 1601 A.D. (C.E.) Coordinated Universal Time (UTC), adjusted to local time.

NTFS-formatted drives may cache file meta-info, such as file creation time, for a short period of time, which is known as "file tunneling." As a result, it may be necessary to explicitly set the creation time of a file if you are overwriting or replacing an existing file.

For a list of common I/O tasks, see Common I/O Tasks.

The following example demonstrates GetCreationTime.

using System;
using System.IO;

class Test 
{
    public static void Main() 
    {
        try 
        {
            // Get the creation time of a well-known directory.
            DateTime dt = Directory.GetCreationTime(
                Environment.CurrentDirectory);


            // Give feedback to the user.
            if (DateTime.Now.Subtract(dt).TotalDays > 364) 
            {
                Console.WriteLine("This directory is over a year old.");
            } 
            else if (DateTime.Now.Subtract(dt).TotalDays > 30) 
            {
                Console.WriteLine("This directory is over a month old.");
            } 
            else if (DateTime.Now.Subtract(dt).TotalDays <= 1) 
            {
                Console.WriteLine("This directory is less than a day old.");
            } 
            else 
            {
                Console.WriteLine("This directory was created on {0}.", dt);
            }
        } 
        
        catch (Exception e) 
        {
            Console.WriteLine("The process failed: {0}", e.ToString());
        }
    }
}

import System.*;
import System.IO.*;

class Test
{
    public static void main(String[] args)
    {
        try {
            // Get the creation time of a well-known directory.
            DateTime dt = Directory.GetCreationTime(Environment.
                get_CurrentDirectory());

            // Give feedback to the user.
            if (DateTime.get_Now().Subtract(dt).get_TotalDays() > 364) {
                Console.WriteLine("This directory is over a year old.");
            }
            else {
                if (DateTime.get_Now().Subtract(dt).get_TotalDays() > 30) {
                    Console.WriteLine("This directory is over a month old.");
                }
                else {
                    if (DateTime.get_Now().Subtract(dt).get_TotalDays() <= 1) {
                        Console.WriteLine("This directory is less than a " 
                            + " day old.");
                    }
                    else {
                        Console.WriteLine("This directory was created on {0}.",
                            dt);
                    }
                }
            }
        }
        catch (System.Exception e) {
            Console.WriteLine("The process failed: {0}", e.ToString());
        }
    } //main
} //Test

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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