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File.GetLastAccessTime() Method in C# with Examples

  • Last Updated : 10 Mar, 2021

File.GetLastAccessTime(String) is an inbuilt File class method which is used to return the date and time the specified file or directory was last accessed.
Syntax: 
 

public static DateTime GetLastAccessTime (string path);

Parameter: This function accepts a parameter which is illustrated below: 
 

  • path: This is the specified file path.

Exceptions:
 

  • UnauthorizedAccessException: The caller does not have the required permission.
  • ArgumentException: The path is a zero-length string, contains only white space, or one or more invalid characters as defined by InvalidPathChars.
  • ArgumentNullException: The path is null.
  • PathTooLongException: The given path, file name, or both exceed the system-defined maximum length.
  • NotSupportedException: The path is in an invalid format.

Return Value: Returns the date and time the specified file or directory was last accessed.
Below are the programs to illustrate the File.GetLastAccessTime(String) method.
Program 1: Before running the below code, a file file.txt is created with some contents shown below:
 

file.txt

 

C#




// C# program to illustrate the usage
// of File.GetLastAccessTime(String) method
  
// Using System and System.IO namespaces
using System;
using System.IO;
  
class GFG {
    public static void Main()
    {
        // Specifying a file
        string myfile = @"file.txt";
  
        // Calling GetLastAccessTime() function
        DateTime dt = File.GetLastAccessTime(myfile);
  
        // Getting the last access time
        Console.WriteLine("The last access time for this file was {0}.", dt);
    }
}

Executing: 
 

The last access time for this file was 5/4/2020 12:00:00 AM.

Program 2: Before running the below code, a file was created shown below:
 

file.txt

 

C#




// C# program to illustrate the usage
// of File.GetLastAccessTime(String) method
  
// Using System and System.IO namespaces
using System;
using System.IO;
  
class GFG {
    public static void Main()
    {
        // Specifying a file
        string myfile = @"file.txt";
  
        // Setting the date
        File.SetLastAccessTime(myfile, new DateTime(2020, 5, 4));
  
        // Calling GetLastAccessTime() function
        DateTime dt = File.GetLastAccessTime(myfile);
  
        // Getting the last access time
        Console.WriteLine("The last access time for this file was {0}.", dt);
    }
}

Executing: 
 

The last access time for this file was 5/4/2020 12:00:00 AM.


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