C# File Operations: Delete File Attribute

C# file operations includes the changing of attributes of file also. This example will help you to remove the readonly file attribute from a given file. Example shows that the file have read only attribute and we have removed the readonly attribute by masking using & operator. 

C# Program:

using System;
using System.IO;

namespace MyApp
{
    class Program
    {
        static void Main(string[] args)
        {
            string txt_file = @"c:\Demo_File.txt";

            File.SetAttributes(txt_file,FileAttributes.ReadOnly);

            bool is_ReadOnly = ((File.GetAttributes(txt_file) & FileAttributes.ReadOnly) == FileAttributes.ReadOnly);
            Console.WriteLine("ReadOnly Attribute After Add: " + is_ReadOnly.ToString()); 

            // delete/clear ReadOnly attribute
            File.SetAttributes(txt_file, File.GetAttributes(txt_file) & ~FileAttributes.ReadOnly);

            is_ReadOnly = ((File.GetAttributes(txt_file) & FileAttributes.ReadOnly) == FileAttributes.ReadOnly);
            Console.WriteLine("ReadOnly Attribute After Remove: " + is_ReadOnly.ToString());           

            Console.ReadLine();
        }    
    }
}