Parameters

path

The file or directory for which to set the access date and time information.

lastAccessTime

An object that contains the value to set for the access date and time of path. This value is expressed in local time.

Exceptions

Type	Reason
ArgumentException	path is a zero-length string, contains only white space, or contains one or more implementation-specific invalid characters.
ArgumentNullException	path is null.
System.IO.IOException	An I/O error occurred while performing the operation.
System.IO.PathTooLongException	The length of path or the absolute path information for path exceeds the system-defined maximum length.
System.Security.SecurityException	The caller does not have the required permission.
ArgumentOutOfRangeException	lastAccessTime specifies a value outside the range of date/times permitted for this operation.
System.IO.FileNotFoundException	path was not found.
UnauthorizedAccessException	The caller does not have the required permission.

Remarks

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 Directory.GetCurrentDirectory.

The path parameter is not case-sensitive.

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

Permissions

Requirements