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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)

'Declaration
Public Shared Function GetCreationTime ( _
	path As String _
) As DateTime

Parameters

path
Type: System.String
The file or directory for which to obtain creation date and time information.

Return Value

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

ExceptionCondition
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 Nothing.

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.

NoteNote

This method may return an inaccurate value, because it uses native functions whose values may not be continuously updated by the operating system.

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.


Imports System
Imports System.IO
Imports System.Text

Public Class Test
    Public Shared Sub Main()
        Try
            ' Get the creation time of a well-known directory.
            Dim dt As DateTime = Directory.GetCreationTime(Environment.CurrentDirectory)

            ' Give feedback to the user.
            If (DateTime.Now.Subtract(dt).TotalDays > 364) Then
                Console.WriteLine("This directory is over a year old.")
            ElseIf (DateTime.Now.Subtract(dt).TotalDays > 30) Then
                Console.WriteLine("This directory is over a month old.")
            ElseIf (DateTime.Now.Subtract(dt).TotalDays <= 1) Then
                Console.WriteLine("This directory is less than a day old.")
            Else
                Console.WriteLine("This directory was created on {0}.", dt)
            End If

        Catch e As Exception
            Console.WriteLine("The process failed: {0}", e.ToString())
        End Try
    End Sub
End Class


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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