File.SetLastAccessTime Método

Source:

File.cs

Source:

File.cs

Source:

File.cs

public:
 static void SetLastAccessTime(System::String ^ path, DateTime lastAccessTime);

public static void SetLastAccessTime(string path, DateTime lastAccessTime);

static member SetLastAccessTime : string * DateTime -> unit

Public Shared Sub SetLastAccessTime (path As String, lastAccessTime As DateTime)

Parámetros

Excepciones

Ejemplos

En el ejemplo siguiente se comprueba el sistema de archivos para el archivo especificado, se crea si es necesario y, a continuación, se establece y obtiene la hora de último acceso.

using namespace System;
using namespace System::IO;
int main()
{
   try
   {
      String^ path = "c:\\Temp\\MyTest.txt";
      if (  !File::Exists( path ) )
      {
         File::Create( path );
         
         // Update the last access time.    
      }
      File::SetLastAccessTime( path, DateTime(1985,5,4) );
      
      // Get the creation time of a well-known directory.
      DateTime dt = File::GetLastAccessTime( path );
      Console::WriteLine( "The last access time for this file was {0}.", dt );
      
      // Update the last access time.
      File::SetLastAccessTime( path, DateTime::Now );
      dt = File::GetLastAccessTime( path );
      Console::WriteLine( "The last access time for this file was {0}.", dt );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "The process failed: {0}", e );
   }

}

using System;
using System.IO;

class Test
{
    public static void Main()
    {
        try
        {
            string path = @"c:\Temp\MyTest.txt";

            if (!File.Exists(path))
            {
                File.Create(path);
                // Update the last access time.	
            }
            File.SetLastAccessTime(path, new DateTime(1985,5,4));

            // Get the creation time of a well-known directory.
            DateTime dt = File.GetLastAccessTime(path);
            Console.WriteLine("The last access time for this file was {0}.", dt);
            
            // Update the last access time.
            File.SetLastAccessTime(path, DateTime.Now);
            dt = File.GetLastAccessTime(path);
            Console.WriteLine("The last access time for this file was {0}.", dt);
        }
        catch (Exception e)
        {
            Console.WriteLine("The process failed: {0}", e.ToString());
        }
    }
}

open System
open System.IO

try
    let path = @"c:\Temp\MyTest.txt"

    if File.Exists path |> not then
        File.Create path |> ignore

    // Update the last access time.
    File.SetLastAccessTime(path, DateTime(1985, 5, 4))

    // Get the creation time of a well-known directory.
    let dt = File.GetLastAccessTime path
    printfn $"The last access time for this file was {dt}."

    // Update the last access time.
    File.SetLastAccessTime(path, DateTime.Now)
    let dt = File.GetLastAccessTime path
    printfn $"The last access time for this file was {dt}."
with
| e -> printfn $"The process failed: {e}"

Imports System.IO
Imports System.Text

Public Class Test
    Public Shared Sub Main()
        Try
            Dim path As String = "c:\Temp\MyTest.txt"

            If File.Exists(path) = False Then
                File.Create(path)
            End If
            File.SetLastAccessTime(path, New DateTime(1985, 5, 4))

            ' Get the creation time of a well-known directory.
            Dim dt As DateTime = File.GetLastAccessTime(path)
            Console.WriteLine("The last access time for this file was {0}.", dt)

            ' Update the last access time.
            File.SetLastAccessTime(path, DateTime.Now)
            dt = File.GetLastAccessTime(path)
            Console.WriteLine("The last access time for this file was {0}.", dt)

        Catch e As Exception
            Console.WriteLine("The process failed: {0}", e.ToString())
        End Try
    End Sub
End Class

Comentarios

El parámetro path puede especificar información de ruta de acceso relativa o absoluta. La información de ruta de acceso relativa se interpreta como relativa al directorio de trabajo actual. Para obtener el directorio de trabajo actual, consulte GetCurrentDirectory.

Para obtener una lista de las tareas comunes de E/S, consulte Tareas de E/S comunes.

Consulte también

• FileSystemWatcher
• de E/S de flujo y archivos
• leer texto de un archivo
• Cómo: Escribir texto en un archivo

Source:

File.cs

Source:

File.cs

Source:

File.cs

public:
 static void SetLastAccessTime(Microsoft::Win32::SafeHandles::SafeFileHandle ^ fileHandle, DateTime lastAccessTime);

public static void SetLastAccessTime(Microsoft.Win32.SafeHandles.SafeFileHandle fileHandle, DateTime lastAccessTime);

static member SetLastAccessTime : Microsoft.Win32.SafeHandles.SafeFileHandle * DateTime -> unit

Public Shared Sub SetLastAccessTime (fileHandle As SafeFileHandle, lastAccessTime As DateTime)

Parámetros

Excepciones