File.GetCreationTimeUtc Method
Returns the creation date and time, in coordinated universal time (UTC), of the specified file or directory.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- path
- Type: System.String
The file or directory for which to obtain creation date and time information.
Return Value
Type: System.DateTimeA DateTime structure set to the creation date and time for the specified file or directory. This value is expressed in UTC time.
| Exception | Condition |
|---|---|
| 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 null. |
| 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. |
Note
|
|---|
|
This method may return an inaccurate value, because it uses native functions whose values may not be continuously updated by the operating system. |
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).
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.
-
FileIOPermission
for reading from the specified file. Associated enumeration: FileIOPermissionAccess.Read
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.
