File.Delete() Method in C# with Examples

File.Delete(String) is an inbuilt File class method which is used to delete the specified file.
Syntax:

public static void Delete (string path);

Parameter: This function accepts a parameter which is illustrated below: 

• path: This is the specified file path which is to be deleted.

Exceptions:

• ArgumentException: The path is a zero-length string, contains only white space, or one or more invalid characters as defined by InvalidPathChars.
• ArgumentNullException: The path is null.
• DirectoryNotFoundException: The given path is invalid.
• IOException: The given file is in use. OR there is an open handle on the file, and the operating system is Windows XP or earlier. This open handle can result from enumerating directories and files. For more information, see How to: Enumerate Directories and Files.
• NotSupportedException: The path is in an invalid format.
• PathTooLongException: The given path, file name, or both exceed the system-defined maximum length.
• UnauthorizedAccessException: The caller does not have the required permission. OR the file is an executable file that is in use. OR the path is a directory. OR the path specified a read-only file.

Below are the programs to illustrate the File.Delete(String) method.
Program 1: Before running the below code, a file file.txt is created with some contents shown below:

CSharp

// C# program to illustrate the usage
// of File.Delete(String) method

// Using System and System.IO namespaces
using System;
using System.IO;

public class GFG {
    // Using main() function
    public static void Main()
    {
        // Specifying a file
        String myfile = @"file.txt";

        // Calling the Delete() function to
        // delete the file file.txt
        File.Delete(myfile);

        // Printing a line
        Console.WriteLine("Specified file has been deleted");
    }
}

Executing:

mcs -out:main.exe main.cs
mono main.exe
Specified file has been deleted

After running the above code, the above output is shown and the file file.txt has been deleted.
Program 2: Before running the below code, two files have been created shown below:

CSharp

// C# program to illustrate the usage
// of File.Delete(String) method

// Using System and System.IO namespaces
using System;
using System.IO;

public class GFG {
    // Using main() function
    public static void Main()
    {
        // Specifying two files
        String myfile1 = @"file.txt";
        String myfile2 = @"gfg.txt";

        // Calling the Delete() function to
        // delete the file file.txt and gfg.txt
        File.Delete(myfile1);
        File.Delete(myfile2);

        // Printing a line
        Console.WriteLine("Specified files have been deleted.");
    }
}

Executing:

mcs -out:main.exe main.cs
mono main.exe
Specified files have been deleted.

After running the above code, above output is shown and two existing files file.txt and gfg.txt have been deleted.