FileInfo.CopyTo 메서드
정의
중요
일부 정보는 릴리스되기 전에 상당 부분 수정될 수 있는 시험판 제품과 관련이 있습니다. Microsoft는 여기에 제공된 정보에 대해 어떠한 명시적이거나 묵시적인 보증도 하지 않습니다.
새 파일에 기존 파일을 복사합니다.
오버로드
CopyTo(String) |
새 파일에 기존 파일을 복사하고 기존 파일을 덮어쓸 수 없도록 합니다. |
CopyTo(String, Boolean) |
새 파일에 기존 파일을 복사하고 기존 파일을 덮어쓸 수 있도록 합니다. |
CopyTo(String)
- Source:
- FileInfo.cs
- Source:
- FileInfo.cs
- Source:
- FileInfo.cs
새 파일에 기존 파일을 복사하고 기존 파일을 덮어쓸 수 없도록 합니다.
public:
System::IO::FileInfo ^ CopyTo(System::String ^ destFileName);
public System.IO.FileInfo CopyTo (string destFileName);
member this.CopyTo : string -> System.IO.FileInfo
Public Function CopyTo (destFileName As String) As FileInfo
매개 변수
- destFileName
- String
복사할 새 파일의 이름입니다.
반환
정규화된 경로가 있는 새 파일입니다.
예외
2.1 이전의 .NET Framework 및 .NET Core 버전: destFileName
비어 있거나 공백만 포함하거나 잘못된 문자를 포함합니다.
오류가 발생했거나 대상 파일이 이미 있습니다.
호출자에게 필요한 권한이 없는 경우
destFileName
이(가) null
인 경우
디렉터리 경로를 거치거나 파일이 다른 드라이브로 이동됩니다.
destFileName
에 지정된 디렉터리가 없습니다.
지정된 경로, 파일 이름 또는 둘 다가 시스템에서 정의한 최대 길이를 초과합니다.
destFileName
은 문자열 내에 콜론(:)을 포함하지만 볼륨을 지정하지는 않습니다.
예제
다음 예제에서는 메서드의 두 오버로드를 CopyTo
보여 줍니다.
using namespace System;
using namespace System::IO;
int main()
{
String^ path = "c:\\MyTest.txt";
String^ path2 = "c:\\MyTest.txttemp";
FileInfo^ fi1 = gcnew FileInfo( path );
FileInfo^ fi2 = gcnew FileInfo( path2 );
try
{
// Create the file and clean up handles.
FileStream^ fs = fi1->Create();
if ( fs )
delete (IDisposable^)fs;
//Ensure that the target does not exist.
fi2->Delete();
//Copy the file.
fi1->CopyTo( path2 );
Console::WriteLine( "{0} was copied to {1}.", path, path2 );
//Try to copy it again, which should succeed.
fi1->CopyTo( path2, true );
Console::WriteLine( "The second Copy operation succeeded, which is expected." );
}
catch ( Exception^ )
{
Console::WriteLine( "Double copying was not allowed, which is not expected." );
}
}
//This code produces output similar to the following;
//results may vary based on the computer/file structure/etc.:
//
//The second Copy operation succeeded, which is expected.
using System;
using System.IO;
class Test
{
public static void Main()
{
string path = @"c:\SoureFile.txt";
string path2 = @"c:\NewFile.txt";
FileInfo fi1 = new FileInfo(path);
FileInfo fi2 = new FileInfo(path2);
try
{
// Create the source file.
using (FileStream fs = fi1.Create()) { }
//Ensure that the target file does not exist.
if (File.Exists(path2))
{
fi2.Delete();
}
//Copy the file.f
fi1.CopyTo(path2);
Console.WriteLine("{0} was copied to {1}.", path, path2);
}
catch (IOException ioex)
{
Console.WriteLine(ioex.Message);
}
}
}
Imports System.IO
Public Class Test
Public Shared Sub Main()
'Specify the directories you want to manipulate.
Dim path As String = "c:\SourceFile.txt"
Dim path2 As String = "c:\NewFile.txt"
Dim fi As FileInfo = New FileInfo(path)
Dim fi2 As FileInfo = New FileInfo(path2)
Try
Using fs As FileStream = fi.Create()
End Using
'Ensure that the target does not exist.
If File.Exists(path2) Then
fi2.Delete()
End If
'Copy the file.
fi.CopyTo(path2)
Console.WriteLine("{0} was copied to {1}.", path, path2)
Catch ioex As IOException
Console.WriteLine(ioex.Message)
End Try
End Sub
End Class
다음 예제에서는 한 파일을 다른 파일에 복사하여 대상 파일이 이미 있는 경우 예외를 throw하는 방법을 보여 줍니다.
using namespace System;
using namespace System::IO;
int main()
{
try
{
// Create a reference to a file, which might or might not exist.
// If it does not exist, it is not yet created.
FileInfo^ fi = gcnew FileInfo( "temp.txt" );
// Create a writer, ready to add entries to the file.
StreamWriter^ sw = fi->AppendText();
sw->WriteLine( "Add as many lines as you like..." );
sw->WriteLine( "Add another line to the output..." );
sw->Flush();
sw->Close();
// Get the information out of the file and display it.
StreamReader^ sr = gcnew StreamReader( fi->OpenRead() );
Console::WriteLine( "This is the information in the first file:" );
while ( sr->Peek() != -1 )
Console::WriteLine( sr->ReadLine() );
// Copy this file to another file. The file will not be overwritten if it already exists.
FileInfo^ newfi = fi->CopyTo( "newTemp.txt" );
// Get the information out of the new file and display it.* sr = new StreamReader(newfi->OpenRead());
Console::WriteLine( "{0}This is the information in the second file:", Environment::NewLine );
while ( sr->Peek() != -1 )
Console::WriteLine( sr->ReadLine() );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
}
}
//This code produces output similar to the following;
//results may vary based on the computer/file structure/etc.:
//
//This is the information in the first file:
//Add as many lines as you like...
//Add another line to the output...
//
//This is the information in the second file:
using System;
using System.IO;
public class CopyToTest
{
public static void Main()
{
try
{
// Create a reference to a file, which might or might not exist.
// If it does not exist, it is not yet created.
FileInfo fi = new FileInfo("temp.txt");
// Create a writer, ready to add entries to the file.
StreamWriter sw = fi.AppendText();
sw.WriteLine("Add as many lines as you like...");
sw.WriteLine("Add another line to the output...");
sw.Flush();
sw.Close();
// Get the information out of the file and display it.
StreamReader sr = new StreamReader(fi.OpenRead());
Console.WriteLine("This is the information in the first file:");
while (sr.Peek() != -1)
Console.WriteLine(sr.ReadLine());
// Copy this file to another file. The file will not be overwritten if it already exists.
FileInfo newfi = fi.CopyTo("newTemp.txt");
// Get the information out of the new file and display it.
sr = new StreamReader(newfi.OpenRead());
Console.WriteLine("{0}This is the information in the second file:", Environment.NewLine);
while (sr.Peek() != -1)
Console.WriteLine(sr.ReadLine());
}
catch(Exception e)
{
Console.WriteLine(e.Message);
}
}
}
//This code produces output similar to the following;
//results may vary based on the computer/file structure/etc.:
//
//This is the information in the first file:
//Add as many lines as you like...
//Add another line to the output...
//This is the information in the second file:
//Add as many lines as you like...
//Add another line to the output...
Imports System.IO
Public Class CopyToTest
Public Shared Sub Main()
Try
' Create a reference to a file, which might or might not exist.
' If it does not exist, it is not yet created.
Dim fi As New FileInfo("temp.txt")
' Create a writer, ready to add entries to the file.
Dim sw As StreamWriter = fi.AppendText()
sw.WriteLine("Add as many lines as you like...")
sw.WriteLine("Add another line to the output...")
sw.Flush()
sw.Close()
' Get the information out of the file and display it.
Dim sr As New StreamReader(fi.OpenRead())
Console.WriteLine("This is the information in the first file:")
While sr.Peek() <> -1
Console.WriteLine(sr.ReadLine())
End While
' Copy this file to another file.
Dim newfi As FileInfo = fi.CopyTo("newTemp.txt")
' Get the information out of the new file and display it.
sr = New StreamReader(newfi.OpenRead())
Console.WriteLine("{0}This is the information in the second file:", Environment.NewLine)
While sr.Peek() <> -1
Console.WriteLine(sr.ReadLine())
End While
Catch e As Exception
Console.WriteLine(e.Message)
End Try
End Sub
End Class
'This code produces output similar to the following;
'results may vary based on the computer/file structure/etc.:
'
'This is the information in the first file:
'Add as many lines as you like...
'Add another line to the output...
'
'This is the information in the second file:
'Add as many lines as you like...
'Add another line to the output...
설명
메서드를 CopyTo(String, Boolean) 사용하여 기존 파일의 덮어쓰기를 허용합니다.
주의
가능하면 이 메서드와 함께 짧은 파일 이름(예: XXXXXX~1.XXX)을 사용하지 마세요. 두 파일에 해당하는 짧은 파일 이름이 있는 경우 이 메서드가 실패하여 예외 및/또는 이로 인해 바람직하지 않은 동작이 발생할 수 있습니다.
추가 정보
적용 대상
CopyTo(String, Boolean)
- Source:
- FileInfo.cs
- Source:
- FileInfo.cs
- Source:
- FileInfo.cs
새 파일에 기존 파일을 복사하고 기존 파일을 덮어쓸 수 있도록 합니다.
public:
System::IO::FileInfo ^ CopyTo(System::String ^ destFileName, bool overwrite);
public System.IO.FileInfo CopyTo (string destFileName, bool overwrite);
member this.CopyTo : string * bool -> System.IO.FileInfo
Public Function CopyTo (destFileName As String, overwrite As Boolean) As FileInfo
매개 변수
- destFileName
- String
복사할 새 파일의 이름입니다.
- overwrite
- Boolean
기존 파일을 덮어쓸 수 있도록 하려면 true
이고, 그렇지 않으면 false
입니다.
반환
새 파일이 반환되거나, overwrite
가 true
인 경우 기존 파일을 덮어씁니다. 파일이 있고 overwrite
가 false
이면 IOException이 throw됩니다.
예외
2.1 이전의 .NET Framework 및 .NET Core 버전: destFileName
비어 있거나 공백만 포함하거나 잘못된 문자를 포함합니다.
오류가 발생했거나 대상 파일이 이미 있으며 overwrite
가 false
입니다.
호출자에게 필요한 권한이 없는 경우
destFileName
이(가) null
인 경우
destFileName
에 지정된 디렉터리가 없습니다.
디렉터리 경로를 거치거나 파일이 다른 드라이브로 이동됩니다.
지정된 경로, 파일 이름 또는 둘 다가 시스템에서 정의한 최대 길이를 초과합니다.
destFileName
의 문자열 중간에 콜론(:)이 있습니다.
예제
다음 예제에서는 메서드의 두 오버로드를 CopyTo
보여 줍니다.
using namespace System;
using namespace System::IO;
int main()
{
String^ path = "c:\\MyTest.txt";
String^ path2 = "c:\\MyTest.txttemp";
FileInfo^ fi1 = gcnew FileInfo( path );
FileInfo^ fi2 = gcnew FileInfo( path2 );
try
{
// Create the file and clean up handles.
FileStream^ fs = fi1->Create();
if ( fs )
delete (IDisposable^)fs;
//Ensure that the target does not exist.
fi2->Delete();
//Copy the file.
fi1->CopyTo( path2 );
Console::WriteLine( "{0} was copied to {1}.", path, path2 );
//Try to copy it again, which should succeed.
fi1->CopyTo( path2, true );
Console::WriteLine( "The second Copy operation succeeded, which is expected." );
}
catch ( Exception^ )
{
Console::WriteLine( "Double copying was not allowed, which is not expected." );
}
}
//This code produces output similar to the following;
//results may vary based on the computer/file structure/etc.:
//
//The second Copy operation succeeded, which is expected.
using System;
using System.IO;
class Test
{
public static void Main()
{
string path = @"c:\SoureFile.txt";
string path2 = @"c:\NewFile.txt";
FileInfo fi1 = new FileInfo(path);
FileInfo fi2 = new FileInfo(path2);
try
{
// Create the source file.
using (FileStream fs = fi1.Create()) { }
//Ensure that the target file does not exist.
if (File.Exists(path2))
{
fi2.Delete();
}
//Copy the file.f
fi1.CopyTo(path2);
Console.WriteLine("{0} was copied to {1}.", path, path2);
}
catch (IOException ioex)
{
Console.WriteLine(ioex.Message);
}
}
}
Imports System.IO
Public Class Test
Public Shared Sub Main()
'Specify the directories you want to manipulate.
Dim path As String = "c:\SourceFile.txt"
Dim path2 As String = "c:\NewFile.txt"
Dim fi As FileInfo = New FileInfo(path)
Dim fi2 As FileInfo = New FileInfo(path2)
Try
Using fs As FileStream = fi.Create()
End Using
'Ensure that the target does not exist.
If File.Exists(path2) Then
fi2.Delete()
End If
'Copy the file.
fi.CopyTo(path2)
Console.WriteLine("{0} was copied to {1}.", path, path2)
Catch ioex As IOException
Console.WriteLine(ioex.Message)
End Try
End Sub
End Class
다음 예제에서는 한 파일을 다른 파일에 복사하여 이미 존재하는 파일을 덮어쓸지 여부를 지정하는 방법을 보여 줍니다.
using namespace System;
using namespace System::IO;
int main()
{
// Create a reference to a file, which might or might not exist.
// If it does not exist, it is not yet created.
FileInfo^ fi = gcnew FileInfo( "temp.txt" );
// Create a writer, ready to add entries to the file.
StreamWriter^ sw = fi->AppendText();
sw->WriteLine( "Add as many lines as you like..." );
sw->WriteLine( "Add another line to the output..." );
sw->Flush();
sw->Close();
// Get the information out of the file and display it.
StreamReader^ sr = gcnew StreamReader( fi->OpenRead() );
Console::WriteLine( "This is the information in the first file:" );
while ( sr->Peek() != -1 )
Console::WriteLine( sr->ReadLine() );
// Copy this file to another file. The true parameter specifies
// that the file will be overwritten if it already exists.
FileInfo^ newfi = fi->CopyTo( "newTemp.txt", true );
// Get the information out of the new file and display it.* sr = new StreamReader( newfi->OpenRead() );
Console::WriteLine( "{0}This is the information in the second file:", Environment::NewLine );
while ( sr->Peek() != -1 )
Console::WriteLine( sr->ReadLine() );
}
//This code produces output similar to the following;
//results may vary based on the computer/file structure/etc.:
//
//This is the information in the first file:
//Add as many lines as you like...
//Add another line to the output...
//This is the information in the second file:
//
using System;
using System.IO;
public class CopyToTest
{
public static void Main()
{
// Create a reference to a file, which might or might not exist.
// If it does not exist, it is not yet created.
FileInfo fi = new FileInfo("temp.txt");
// Create a writer, ready to add entries to the file.
StreamWriter sw = fi.AppendText();
sw.WriteLine("Add as many lines as you like...");
sw.WriteLine("Add another line to the output...");
sw.Flush();
sw.Close();
// Get the information out of the file and display it.
StreamReader sr = new StreamReader( fi.OpenRead() );
Console.WriteLine("This is the information in the first file:");
while (sr.Peek() != -1)
Console.WriteLine( sr.ReadLine() );
// Copy this file to another file. The true parameter specifies
// that the file will be overwritten if it already exists.
FileInfo newfi = fi.CopyTo("newTemp.txt", true);
// Get the information out of the new file and display it.
sr = new StreamReader( newfi.OpenRead() );
Console.WriteLine("{0}This is the information in the second file:", Environment.NewLine);
while (sr.Peek() != -1)
Console.WriteLine( sr.ReadLine() );
}
}
//This code produces output similar to the following;
//results may vary based on the computer/file structure/etc.:
//
//This is the information in the first file:
//Add as many lines as you like...
//Add another line to the output...
//Add as many lines as you like...
//Add another line to the output...
//This is the information in the second file:
//Add as many lines as you like...
//Add another line to the output...
//Add as many lines as you like...
//Add another line to the output...
Imports System.IO
Public Class CopyToTest
Public Shared Sub Main()
' Create a reference to a file, which might or might not exist.
' If it does not exist, it is not yet created.
Dim fi As New FileInfo("temp.txt")
' Create a writer, ready to add entries to the file.
Dim sw As StreamWriter = fi.AppendText()
sw.WriteLine("Add as many lines as you like...")
sw.WriteLine("Add another line to the output...")
sw.Flush()
sw.Close()
' Get the information out of the file and display it.
Dim sr As New StreamReader(fi.OpenRead())
Console.WriteLine("This is the information in the first file:")
While sr.Peek() <> -1
Console.WriteLine(sr.ReadLine())
End While
' Copy this file to another file. The true parameter specifies
' that the file will be overwritten if it already exists.
Dim newfi As FileInfo = fi.CopyTo("newTemp.txt", True)
' Get the information out of the new file and display it.
sr = New StreamReader(newfi.OpenRead())
Console.WriteLine("{0}This is the information in the second file:", Environment.NewLine)
While sr.Peek() <> -1
Console.WriteLine(sr.ReadLine())
End While
End Sub
End Class
'This code produces output similar to the following;
'results may vary based on the computer/file structure/etc.:
'
'This is the information in the first file:
'Add as many lines as you like...
'Add another line to the output...
'
'This is the information in the second file:
'Add as many lines as you like...
'Add another line to the output...
'
설명
기존 파일의 덮어쓰기를 허용하거나 방지하려면 이 메서드를 사용합니다. 메서드를 CopyTo(String) 사용하여 기본적으로 기존 파일의 덮어쓰기를 방지합니다.
주의
가능하면 이 메서드와 함께 짧은 파일 이름(예: XXXXXX~1.XXX)을 사용하지 마세요. 두 파일에 해당하는 짧은 파일 이름이 있는 경우 이 메서드가 실패하여 예외 및/또는 이로 인해 바람직하지 않은 동작이 발생할 수 있습니다.
추가 정보
적용 대상
.NET