Question

How to check if file exists in C#

Answer 1

using System;
using System.IO;
 
class Program
{
    static void Main() {
        if (File.Exists("d:\\data.txt")) {
            Console.WriteLine("The file: d:\\data.txt exists.");
        }
    }
}

 
 
 
/*
run:
 
The file: d:\data.txt exists.
 
*/

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Answer 2

using System;
using System.IO;
 
class Program
{
    static void Main() {
        if (File.Exists(@"d:\data.txt")) {
            Console.WriteLine("The file: d:\\data.txt exists.");
        }
    }
}

 
 
 
/*
run:
 
The file: d:\data.txt exists.
 
*/

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Answer 3

using System;
using System.IO;
 
class Program
{
    static void Main() {
        string file = @"d:\data.txt";
 
        Console.WriteLine(File.Exists(file) ? "File exists." : "File does not exist.");
    }
}

 
 
 
/*
run:
 
File exists.
 
*/

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Answer 4

using System;
using System.IO;
 
class Program
{
    static void Main() {
        var FileName = @"C:\Project\file.bin";
         
        if (File.Exists(FileName)) {
            Console.WriteLine("File Exists");
        } else {
            Console.WriteLine("File Not Exists");
        }
    }
}
 
 
 
 
 
/*
run:
 
File Not Exists
 
*/

 

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