CreationTimeUtc Property

FileSystemInfo.CreationTimeUtc Property

 

Gets or sets the creation time, in coordinated universal time (UTC), of the current file or directory.

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

[ComVisibleAttribute(false)]
public DateTime CreationTimeUtc { get; set; }

Property Value

Type: System.DateTime

The creation date and time in UTC format of the current FileSystemInfo object.

Exception Condition
IOException

Refresh cannot initialize the data.

DirectoryNotFoundException

The specified path is invalid; for example, it is on an unmapped drive.

PlatformNotSupportedException

The current operating system is not Windows NT or later.

ArgumentOutOfRangeException

The caller attempts to set an invalid access time.

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

The value of the CreationTimeUtc property is pre-cached if the current instance of the FileSystemInfo object was returned from any of the following DirectoryInfo methods:

To get the latest value, call the Refresh method.

If the file described in the FileSystemInfo object does not exist, this property will return 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. This process 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.

This property value is null if the file system containing the FileSystemInfo object does not support this information.

Win95Win98Win98Se

These operating systems do not support this property, and DirectoryInfo implementations of this property are not supported.

FileIOPermission

for setting the creation time. Associated enumeration: FileIOPermissionAccess.Write

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
Return to top
Show:
© 2016 Microsoft