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File.Move Method

Moves a specified file to a new location, providing the option to specify a new file name.

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)

'Declaration
Public Shared Sub Move ( _
	sourceFileName As String, _
	destFileName As String _
)
'Usage
Dim sourceFileName As String
Dim destFileName As String

File.Move(sourceFileName, destFileName)
public static void Move (
	String sourceFileName, 
	String destFileName
)
public static function Move (
	sourceFileName : String, 
	destFileName : String
)
Not applicable.

Parameters

sourceFileName

The name of the file to move.

destFileName

The new path for the file.

Exception typeCondition

IOException

The destination file already exists.

ArgumentNullException

sourceFileName or destFileName is a null reference (Nothing in Visual Basic).

ArgumentException

sourceFileName or destFileName is a zero-length string, contains only white space, or contains invalid characters as defined in InvalidPathChars.

UnauthorizedAccessException

The caller does not have the required permission.

FileNotFoundException

sourceFileName was not found.

PathTooLongException

The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.

DirectoryNotFoundException

The path specified in sourceFileName or destFileName is invalid, (for example, it is on an unmapped drive).

NotSupportedException

sourceFileName or destFileName is in an invalid format.

This method works across disk volumes, and it does not throw an exception if the source and destination are the same. Note that if you attempt to replace a file by moving a file of the same name into that directory, you get an IOException. You cannot use the Move method to overwrite an existing file.

The sourceFileName and destFileName arguments are permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory.

For a list of common I/O tasks, see Common I/O Tasks.

The following example moves a file.

Imports System
Imports System.IO
Imports System.Text

Public Class Test
    Public Shared Sub Main()
        Dim path As String = "c:\temp\MyTest.txt"
        Dim path2 As String = "c:\temp2\MyTest.txt"

        Try
            If File.Exists(path) = False Then
                ' This statement ensures that the file is created,
                ' but the handle is not kept.
                Dim fs As FileStream = File.Create(path)
                fs.Close()
            End If

            ' Ensure that the target does not exist.
            If File.Exists(path2) Then
                File.Delete(path2)
            End If

            ' Move the file.
            File.Move(path, path2)
            Console.WriteLine("{0} moved to {1}", path, path2)

            ' See if the original file exists now.
            If File.Exists(path) Then
                Console.WriteLine("The original file still exists, which is unexpected.")
            Else
                Console.WriteLine("The original file no longer exists, which is expected.")
            End If
        Catch e As Exception
            Console.WriteLine("The process failed: {0}", e.ToString())
        End Try
    End Sub
End Class

import System.*;
import System.IO.*;

class Test
{
    public static void main(String[] args)
    {
        String path = "c:\\temp\\MyTest.txt";
        String path2 = "c:\\temp2\\MyTest.txt";

        try {
            if (!(File.Exists(path))) {
                // This statement ensures that the file is created,
                // but the handle is not kept.
                FileStream fs = File.Create(path);

                try {
                }
                finally {
                    fs.Dispose();
                }                
            }

            // Ensure that the target does not exist.
            if (File.Exists(path2)) {
                File.Delete(path2);
            }

            // Move the file.
            File.Move(path, path2);
            Console.WriteLine("{0} was moved to {1}.", path, path2);

            // See if the original exists now.
            if (File.Exists(path)) {
                Console.WriteLine("The original file still exists, " 
                    + "which is unexpected.");
            }
            else {
                Console.WriteLine("The original file no longer exists, " 
                    + "which is expected.");
            }
        }
        catch (System.Exception e) {
            Console.WriteLine("The process failed: {0}", e.ToString());
        }
    } //main
} //Test

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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