// File Attributes [C#]

string filePath = @"c:\test.txt";

// get file attributes
FileAttributes fileAttributes = File.GetAttributes(filePath);

Set file attributes
To set file attributes use static method File.SetAttri­butes. Parameter of the method is a bitwise combination of FileAttributes enumeration.

// clear all file attributes
File.SetAttributes(filePath, FileAttributes.Normal);

// set just only archive and read only attributes (no other attribute will set)
File.SetAttributes(filePath, FileAttributes.Archive |
                             FileAttributes.ReadOnly);




// check whether a file is read only
bool isReadOnly = ((File.GetAttributes(filePath) & FileAttributes.ReadOnly) == FileAttributes.ReadOnly);

// check whether a file is hidden
bool isHidden = ((File.GetAttributes(filePath) & FileAttributes.Hidden) == FileAttributes.Hidden);

// check whether a file has archive attribute
bool isArchive = ((File.GetAttributes(filePath) & FileAttributes.Archive) == FileAttributes.Archive);

// check whether a file is system file
bool isSystem = ((File.GetAttributes(filePath) & FileAttributes.System) == FileAttributes.System);





// set (add) hidden attribute (hide a file)
File.SetAttributes(filePath, File.GetAttributes(filePath) | FileAttributes.Hidden);

// set (add) both archive and read only attributes
File.SetAttributes(filePath, File.GetAttributes(filePath) | (FileAttributes.Archive |
                                                             FileAttributes.ReadOnly));

Delete/clear file attributes from current ones
To delete file attributes from the existing ones get the current file attributes first and use AND (&) operator with a mask (bitwise complement of desired attributes combination).

// delete/clear hidden attribute
File.SetAttributes(filePath, File.GetAttributes(filePath) & ~FileAttributes.Hidden);

// delete/clear archive and read only attributes
File.SetAttributes(filePath, File.GetAttributes(filePath) & ~(FileAttributes.Archive |
                                                              FileAttributes.ReadOnly));