File.GetAttributes Method

Definition

Namespace:

System.IO

Assembly:

System.Runtime.dll

Overloads

GetAttributes(SafeFileHandle)	Gets the specified FileAttributes of the file or directory associated with fileHandle.
GetAttributes(String)	Gets the FileAttributes of the file on the path.

GetAttributes(SafeFileHandle)

Source:

File.cs

Gets the specified FileAttributes of the file or directory associated with fileHandle.

public:
 static System::IO::FileAttributes GetAttributes(Microsoft::Win32::SafeHandles::SafeFileHandle ^ fileHandle);

public static System.IO.FileAttributes GetAttributes (Microsoft.Win32.SafeHandles.SafeFileHandle fileHandle);

static member GetAttributes : Microsoft.Win32.SafeHandles.SafeFileHandle -> System.IO.FileAttributes

Public Shared Function GetAttributes (fileHandle As SafeFileHandle) As FileAttributes

Parameters

fileHandle

SafeFileHandle

A SafeFileHandle to the file or directory for which the attributes are to be retrieved.

Returns

FileAttributes

The FileAttributes of the file or directory.

Exceptions

ArgumentNullException

fileHandle is null.

UnauthorizedAccessException

The caller does not have the required permission.

GetAttributes(String)

Source:

File.cs

Gets the FileAttributes of the file on the path.

public:
 static System::IO::FileAttributes GetAttributes(System::String ^ path);

public static System.IO.FileAttributes GetAttributes (string path);

static member GetAttributes : string -> System.IO.FileAttributes

Public Shared Function GetAttributes (path As String) As FileAttributes

Parameters

path

String

The path to the file.

Returns

FileAttributes

The FileAttributes of the file on the path.

Exceptions

ArgumentException

.NET Framework and .NET Core versions older than 2.1: path is empty, contains only white spaces, or contains invalid characters.

PathTooLongException

The specified path, file name, or both exceed the system-defined maximum length.

NotSupportedException

path is in an invalid format.

FileNotFoundException

path represents a file and is invalid, such as being on an unmapped drive, or the file cannot be found.

DirectoryNotFoundException

path represents a directory and is invalid, such as being on an unmapped drive, or the directory cannot be found.

IOException

This file is being used by another process.

UnauthorizedAccessException

The caller does not have the required permission.

Examples

The following example demonstrates the GetAttributes and SetAttributes methods by applying the Archive and Hidden attributes to a file.

using namespace System;
using namespace System::IO;
using namespace System::Text;
int main()
{
   String^ path = "c:\\temp\\MyTest.txt";
   
   // Create the file if it does not exist.
   if (  !File::Exists( path ) )
   {
      File::Create( path );
   }

   if ( (File::GetAttributes( path ) & FileAttributes::Hidden) == FileAttributes::Hidden )
   {
      
      // Show the file.
      File::SetAttributes(path, File::GetAttributes( path ) & ~FileAttributes::Hidden);
      Console::WriteLine( "The {0} file is no longer hidden.", path );
   }
   else
   {
      
      // Hide the file.
      File::SetAttributes( path, static_cast<FileAttributes>(File::GetAttributes( path ) | FileAttributes::Hidden) );
      Console::WriteLine( "The {0} file is now hidden.", path );
   }
}

using System;
using System.IO;
using System.Text;

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

        // Create the file if it does not exist.
        if (!File.Exists(path))
        {
            File.Create(path);
        }

        FileAttributes attributes = File.GetAttributes(path);

        if ((attributes & FileAttributes.Hidden) == FileAttributes.Hidden)
        {
            // Show the file.
            attributes = RemoveAttribute(attributes, FileAttributes.Hidden);
            File.SetAttributes(path, attributes);
            Console.WriteLine("The {0} file is no longer hidden.", path);
        }
        else
        {
            // Hide the file.
            File.SetAttributes(path, File.GetAttributes(path) | FileAttributes.Hidden);
            Console.WriteLine("The {0} file is now hidden.", path);
        }
    }

    private static FileAttributes RemoveAttribute(FileAttributes attributes, FileAttributes attributesToRemove)
    {
        return attributes & ~attributesToRemove;
    }
}

open System.IO
open System.Text

let removeAttribute attributes attributesToRemove = attributes &&& ~~~attributesToRemove

let path = @"c:\temp\MyTest.txt"

// Create the file if it does not exist.
if File.Exists path |> not then
    File.Create path |> ignore

let attributes = File.GetAttributes path

if attributes &&& FileAttributes.Hidden = FileAttributes.Hidden then
    // Show the file.
    let attributes =
        removeAttribute attributes FileAttributes.Hidden

    File.SetAttributes(path, attributes)
    printfn $"The {path} file is no longer hidden."
else
    // Hide the file.
    File.SetAttributes(path, File.GetAttributes path ||| FileAttributes.Hidden)
    printfn $"The {path} file is now hidden."

Imports System.IO
Imports System.Text

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

        ' Create the file if it does not exist.
        If File.Exists(path) = False Then
            File.Create(path)
        End If

        Dim attributes As FileAttributes
        attributes = File.GetAttributes(path)

        If (attributes And FileAttributes.Hidden) = FileAttributes.Hidden Then
            ' Show the file.
            attributes = RemoveAttribute(attributes, FileAttributes.Hidden)
            File.SetAttributes(path, attributes)
            Console.WriteLine("The {0} file is no longer hidden.", path)
        Else
            ' Hide the file.
            File.SetAttributes(path, File.GetAttributes(path) Or FileAttributes.Hidden)
            Console.WriteLine("The {0} file is now hidden.", path)
        End If
    End Sub

    Public Shared Function RemoveAttribute(ByVal attributes As FileAttributes, ByVal attributesToRemove As FileAttributes) As FileAttributes
        Return attributes And (Not attributesToRemove)
    End Function
End Class

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 GetCurrentDirectory.

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

See also

• File and Stream I/O
• Reading Text From A File
• How to: Write Text to a File