How can you set file attributes (like read-only, hidden) in C#?

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ICSM Computer · Answer

In C#, you can set file attributes like read-only, hidden, or
system using the File.SetAttributes method along with the
FileAttributes enum from the System.IO namespace.
Example: Set a file as read-only and hidden
using System;
using System.IO;
class Program
{
    static void Main()
    {
        string filePath = @"C:\example.txt";
        // Set both ReadOnly and Hidden attributes
        File.SetAttributes(filePath, FileAttributes.ReadOnly | FileAttributes.Hidden);
        Console.WriteLine("Attributes set: ReadOnly and Hidden");
    }
}
How to check or modify existing attributes
Get current attributes:
FileAttributes attributes = File.GetAttributes(filePath);
Console.WriteLine(attributes);
Add an attribute (e.g., make it Hidden in addition to existing ones):
File.SetAttributes(filePath, attributes | FileAttributes.Hidden);
Remove an attribute (e.g., remove ReadOnly):
File.SetAttributes(filePath, attributes and ~FileAttributes.ReadOnly);
Common FileAttributes flags:
ReadOnlyHiddenSystemArchiveNormal (no other attributes set)Temporary
Combining Normal with other attributes will override them—use it only when you want to reset all flags.

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How can you set file attributes (like read-only, hidden) in C#?

ICSM Computer

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1 Answers

Example: Set a file as read-only and hidden

How to check or modify existing attributes

Get current attributes:

Add an attribute (e.g., make it Hidden in addition to existing ones):

Remove an attribute (e.g., remove ReadOnly):

Common `FileAttributes` flags:

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