Sets the date and time, in coordinated universal time (UTC), that the specified file was last accessed.
[Visual Basic] Public Shared Sub SetLastAccessTimeUtc( _ ByVal path As String, _ ByVal lastAccessTimeUtc As DateTime _ ) [C#] public static void SetLastAccessTimeUtc( string path, DateTime lastAccessTimeUtc ); [C++] public: static void SetLastAccessTimeUtc( String* path, DateTime lastAccessTimeUtc ); [JScript] public static function SetLastAccessTimeUtc( path : String, lastAccessTimeUtc : DateTime );
- The file for which to set the access date and time information.
- A DateTime containing the value to set for the last access date and time of path. This value is expressed in UTC time.
|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.|
|FileNotFoundException||The specified path was not found.|
|UnauthorizedAccessException||The caller does not have the required permission.|
|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.
The following table lists examples of other typical or related I/O tasks.
|To do this...||See the example in this topic...|
|Write to a text file.||Writing Text to a File|
|Read from a text file.||Reading Text from a File|
|Append text to a file.||Opening and Appending to a Log File|
|Rename or move a file.||File.Move|
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
.NET Framework Security:
- FileIOPermission for writing to the specified file. Associated enumeration: FileIOPermissionAccess.Write