Directory.GetParent(String) 메서드
정의
중요
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지정된 경로의 절대 경로와 상대 경로를 모두 포함한 부모 디렉터리를 검색합니다.
public:
static System::IO::DirectoryInfo ^ GetParent(System::String ^ path);public static System.IO.DirectoryInfo GetParent (string path);public static System.IO.DirectoryInfo? GetParent (string path);static member GetParent : string -> System.IO.DirectoryInfoPublic Shared Function GetParent (path As String) As DirectoryInfo매개 변수
- path
- String
부모 디렉터리를 검색할 경로입니다.
반환
부모 디렉터리이거나 path가 UNC 서버 또는 공유 이름의 루트를 포함한 루트 디렉터리일 경우 null입니다.
예외
path에 지정된 디렉터리가 읽기 전용입니다.
호출자에게 필요한 권한이 없는 경우
2.1보다 오래된 .NET Framework 및 .NET Core 버전: path 길이가 0인 문자열이거나, 공백만 포함하거나, 하나 이상의 잘못된 문자를 포함합니다. GetInvalidPathChars() 메서드를 사용하여 잘못된 문자를 쿼리할 수 있습니다.
path이(가) null인 경우
지정된 경로, 파일 이름 또는 둘 다가 시스템에서 정의한 최대 길이를 초과합니다. 자세한 내용은 PathTooLongException 항목을 참조하세요.
지정된 경로를 찾을 수 없습니다.
path의 형식이 잘못되었습니다.
.NET Framework만 해당: 호출자에게 필요한 사용 권한이 없습니다.
예제
다음 예제에서는 사용 하는 방법을 보여 줍니다.는 GetParent 사용자 지정 위치의 부모 디렉터리를 검색 하는 방법 "경로" 합니다. 그런 다음 메서드에서 반환된 GetParent 값이 콘솔에 인쇄됩니다. 이 예제는 이 메서드에 공통된 모든 오류를 catch하도록 구성됩니다.
using namespace System;
class Class1
{
public:
void PrintFileSystemEntries( String^ path )
{
try
{
// Obtain the file system entries in the directory path.
array<String^>^directoryEntries = System::IO::Directory::GetFileSystemEntries( path );
for ( int i = 0; i < directoryEntries->Length; i++ )
{
System::Console::WriteLine( directoryEntries[ i ] );
}
}
catch ( ArgumentNullException^ )
{
System::Console::WriteLine( "Path is a null reference." );
}
catch ( System::Security::SecurityException^ )
{
System::Console::WriteLine( "The caller does not have the \HelloServer' required permission." );
}
catch ( ArgumentException^ )
{
System::Console::WriteLine( "Path is an empty String, \HelloServer' contains only white spaces, \HelloServer' or contains invalid characters." );
}
catch ( System::IO::DirectoryNotFoundException^ )
{
System::Console::WriteLine( "The path encapsulated in the \HelloServer' Directory object does not exist." );
}
}
void PrintFileSystemEntries( String^ path, String^ pattern )
{
try
{
// Obtain the file system entries in the directory
// path that match the pattern.
array<String^>^directoryEntries = System::IO::Directory::GetFileSystemEntries( path, pattern );
for ( int i = 0; i < directoryEntries->Length; i++ )
{
System::Console::WriteLine( directoryEntries[ i ] );
}
}
catch ( ArgumentNullException^ )
{
System::Console::WriteLine( "Path is a null reference." );
}
catch ( System::Security::SecurityException^ )
{
System::Console::WriteLine( "The caller does not have the \HelloServer' required permission." );
}
catch ( ArgumentException^ )
{
System::Console::WriteLine( "Path is an empty String, \HelloServer' contains only white spaces, \HelloServer' or contains invalid characters." );
}
catch ( System::IO::DirectoryNotFoundException^ )
{
System::Console::WriteLine( "The path encapsulated in the \HelloServer' Directory object does not exist." );
}
}
// Print out all logical drives on the system.
void GetLogicalDrives()
{
try
{
array<String^>^drives = System::IO::Directory::GetLogicalDrives();
for ( int i = 0; i < drives->Length; i++ )
{
System::Console::WriteLine( drives[ i ] );
}
}
catch ( System::IO::IOException^ )
{
System::Console::WriteLine( "An I/O error occurs." );
}
catch ( System::Security::SecurityException^ )
{
System::Console::WriteLine( "The caller does not have the \HelloServer' required permission." );
}
}
void GetParent( String^ path )
{
try
{
System::IO::DirectoryInfo^ directoryInfo = System::IO::Directory::GetParent( path );
System::Console::WriteLine( directoryInfo->FullName );
}
catch ( ArgumentNullException^ )
{
System::Console::WriteLine( "Path is a null reference." );
}
catch ( ArgumentException^ )
{
System::Console::WriteLine( "Path is an empty String, \HelloServer' contains only white spaces, or \HelloServer' contains invalid characters." );
}
}
void Move( String^ sourcePath, String^ destinationPath )
{
try
{
System::IO::Directory::Move( sourcePath, destinationPath );
System::Console::WriteLine( "The directory move is complete." );
}
catch ( ArgumentNullException^ )
{
System::Console::WriteLine( "Path is a null reference." );
}
catch ( System::Security::SecurityException^ )
{
System::Console::WriteLine( "The caller does not have the \HelloServer' required permission." );
}
catch ( ArgumentException^ )
{
System::Console::WriteLine( "Path is an empty String, \HelloServer' contains only white spaces, \HelloServer' or contains invalid characters." );
}
catch ( System::IO::IOException^ )
{
System::Console::WriteLine( "An attempt was made to move a \HelloServer' directory to a different \HelloServer' volume, or destDirName \HelloServer' already exists." );
}
}
};
int main()
{
Class1 * snippets = new Class1;
String^ path = System::IO::Directory::GetCurrentDirectory();
String^ filter = "*.exe";
snippets->PrintFileSystemEntries( path );
snippets->PrintFileSystemEntries( path, filter );
snippets->GetLogicalDrives();
snippets->GetParent( path );
snippets->Move( "C:\\proof", "C:\\Temp" );
return 0;
}
using System;
namespace GetFileSystemEntries
{
class Class1
{
static void Main(string[] args)
{
Class1 snippets = new Class1();
string path = System.IO.Directory.GetCurrentDirectory();
string filter = "*.exe";
snippets.PrintFileSystemEntries(path);
snippets.PrintFileSystemEntries(path, filter);
snippets.GetLogicalDrives();
snippets.GetParent(path);
snippets.Move("C:\\proof", "C:\\Temp");
}
void PrintFileSystemEntries(string path)
{
try
{
// Obtain the file system entries in the directory path.
string[] directoryEntries =
System.IO.Directory.GetFileSystemEntries(path);
foreach (string str in directoryEntries)
{
System.Console.WriteLine(str);
}
}
catch (ArgumentNullException)
{
System.Console.WriteLine("Path is a null reference.");
}
catch (System.Security.SecurityException)
{
System.Console.WriteLine("The caller does not have the " +
"required permission.");
}
catch (ArgumentException)
{
System.Console.WriteLine("Path is an empty string, " +
"contains only white spaces, " +
"or contains invalid characters.");
}
catch (System.IO.DirectoryNotFoundException)
{
System.Console.WriteLine("The path encapsulated in the " +
"Directory object does not exist.");
}
}
void PrintFileSystemEntries(string path, string pattern)
{
try
{
// Obtain the file system entries in the directory
// path that match the pattern.
string[] directoryEntries =
System.IO.Directory.GetFileSystemEntries(path, pattern);
foreach (string str in directoryEntries)
{
System.Console.WriteLine(str);
}
}
catch (ArgumentNullException)
{
System.Console.WriteLine("Path is a null reference.");
}
catch (System.Security.SecurityException)
{
System.Console.WriteLine("The caller does not have the " +
"required permission.");
}
catch (ArgumentException)
{
System.Console.WriteLine("Path is an empty string, " +
"contains only white spaces, " +
"or contains invalid characters.");
}
catch (System.IO.DirectoryNotFoundException)
{
System.Console.WriteLine("The path encapsulated in the " +
"Directory object does not exist.");
}
}
// Print out all logical drives on the system.
void GetLogicalDrives()
{
try
{
string[] drives = System.IO.Directory.GetLogicalDrives();
foreach (string str in drives)
{
System.Console.WriteLine(str);
}
}
catch (System.IO.IOException)
{
System.Console.WriteLine("An I/O error occurs.");
}
catch (System.Security.SecurityException)
{
System.Console.WriteLine("The caller does not have the " +
"required permission.");
}
}
void GetParent(string path)
{
try
{
System.IO.DirectoryInfo directoryInfo =
System.IO.Directory.GetParent(path);
System.Console.WriteLine(directoryInfo.FullName);
}
catch (ArgumentNullException)
{
System.Console.WriteLine("Path is a null reference.");
}
catch (ArgumentException)
{
System.Console.WriteLine("Path is an empty string, " +
"contains only white spaces, or " +
"contains invalid characters.");
}
}
void Move(string sourcePath, string destinationPath)
{
try
{
System.IO.Directory.Move(sourcePath, destinationPath);
System.Console.WriteLine("The directory move is complete.");
}
catch (ArgumentNullException)
{
System.Console.WriteLine("Path is a null reference.");
}
catch (System.Security.SecurityException)
{
System.Console.WriteLine("The caller does not have the " +
"required permission.");
}
catch (ArgumentException)
{
System.Console.WriteLine("Path is an empty string, " +
"contains only white spaces, " +
"or contains invalid characters.");
}
catch (System.IO.IOException)
{
System.Console.WriteLine("An attempt was made to move a " +
"directory to a different " +
"volume, or destDirName " +
"already exists.");
}
}
}
}
open System
open System.IO
open System.Security
let printFileSystemEntries path =
try
// Obtain the file system entries in the directory path.
let directoryEntries = Directory.GetFileSystemEntries path
for str in directoryEntries do
printfn $"{str}"
with
| :? ArgumentNullException ->
printfn "Path is a null reference."
| :? SecurityException ->
printfn $"The caller does not have the required permission."
| :? ArgumentException ->
printfn $"Path is an empty string, contains only white spaces, or contains invalid characters."
| :? DirectoryNotFoundException ->
printfn $"The path encapsulated in the Directory object does not exist."
let printFileSystemEntriesPattern path pattern =
try
// Obtain the file system entries in the directory
// path that match the pattern.
let directoryEntries = Directory.GetFileSystemEntries(path, pattern)
for str in directoryEntries do
printfn $"{str}"
with
| :? ArgumentNullException -> printfn "Path is a null reference."
| :? SecurityException -> printfn "The caller does not have the required permission."
| :? ArgumentException -> printfn "Path is an empty string, contains only white spaces, or contains invalid characters."
| :? DirectoryNotFoundException -> printfn "The path encapsulated in the Directory object does not exist."
// Print out all logical drives on the system.
let getLogicalDrives () =
try
let drives = Directory.GetLogicalDrives()
for str in drives do
printfn $"{str}"
with
| :? IOException -> printfn "An I/O error occurs."
| :? SecurityException -> printfn "The caller does not have the required permission."
let getParent path =
try
let directoryInfo = Directory.GetParent path
printfn $"{directoryInfo.FullName}"
with
| :? ArgumentNullException -> printfn "Path is a null reference."
| :? ArgumentException -> printfn "Path is an empty string, contains only white spaces, or contains invalid characters."
let move sourcePath destinationPath =
try
Directory.Move(sourcePath, destinationPath)
printfn "The directory move is complete."
with
| :? ArgumentNullException -> printfn "Path is a null reference."
| :? SecurityException -> printfn "The caller does not have the required permission."
| :? ArgumentException -> printfn "Path is an empty string, contains only white spaces, or contains invalid characters."
| :? IOException -> printfn "An attempt was made to move a directory to a different volume, or destDirName already exists."
let path = Directory.GetCurrentDirectory()
let filter = "*.exe"
printFileSystemEntries path
printFileSystemEntriesPattern path filter
getLogicalDrives ()
getParent path
move "C:\\proof" "C:\\Temp"
Option Explicit On
Option Strict On
Namespace GetFileSystemEntries
Class Class1
Overloads Shared Sub Main(ByVal args() As String)
Dim snippets As New Class1()
Dim path As String = System.IO.Directory.GetCurrentDirectory()
Dim filter As String = "*.exe"
snippets.PrintFileSystemEntries(path)
snippets.PrintFileSystemEntries(path, filter)
snippets.GetLogicalDrives()
snippets.GetParent(path)
snippets.Move("C:\proof", "C:\Temp")
End Sub
Sub PrintFileSystemEntries(ByVal path As String)
Try
' Obtain the file system entries in the directory path.
Dim directoryEntries As String()
directoryEntries = System.IO.Directory.GetFileSystemEntries(path)
Dim str As String
For Each str In directoryEntries
System.Console.WriteLine(str)
Next str
Catch exp As ArgumentNullException
System.Console.WriteLine("Path is a null reference.")
Catch exp As System.Security.SecurityException
System.Console.WriteLine("The caller does not have the " + _
"required permission.")
Catch exp As ArgumentException
System.Console.WriteLine("Path is an empty string, " + _
"contains only white spaces, " + _
"or contains invalid characters.")
Catch exp As System.IO.DirectoryNotFoundException
System.Console.WriteLine("The path encapsulated in the " + _
"Directory object does not exist.")
End Try
End Sub
Sub PrintFileSystemEntries(ByVal path As String, _
ByVal pattern As String)
Try
' Obtain the file system entries in the directory
' path that match the pattern.
Dim directoryEntries As String()
directoryEntries = _
System.IO.Directory.GetFileSystemEntries(path, pattern)
Dim str As String
For Each str In directoryEntries
System.Console.WriteLine(str)
Next str
Catch exp As ArgumentNullException
System.Console.WriteLine("Path is a null reference.")
Catch exp As System.Security.SecurityException
System.Console.WriteLine("The caller does not have the " + _
"required permission.")
Catch exp As ArgumentException
System.Console.WriteLine("Path is an empty string, " + _
"contains only white spaces, " + _
"or contains invalid characters.")
Catch exp As System.IO.DirectoryNotFoundException
System.Console.WriteLine("The path encapsulated in the " + _
"Directory object does not exist.")
End Try
End Sub
' Print out all logical drives on the system.
Sub GetLogicalDrives()
Try
Dim drives As String()
drives = System.IO.Directory.GetLogicalDrives()
Dim str As String
For Each str In drives
System.Console.WriteLine(str)
Next str
Catch exp As System.IO.IOException
System.Console.WriteLine("An I/O error occurs.")
Catch exp As System.Security.SecurityException
System.Console.WriteLine("The caller does not have the " + _
"required permission.")
End Try
End Sub
Sub GetParent(ByVal path As String)
Try
Dim directoryInfo As System.IO.DirectoryInfo
directoryInfo = System.IO.Directory.GetParent(path)
System.Console.WriteLine(directoryInfo.FullName)
Catch exp As ArgumentNullException
System.Console.WriteLine("Path is a null reference.")
Catch exp As ArgumentException
System.Console.WriteLine("Path is an empty string, " + _
"contains only white spaces, or " + _
"contains invalid characters.")
End Try
End Sub
Sub Move(ByVal sourcePath As String, ByVal destinationPath As String)
Try
System.IO.Directory.Move(sourcePath, destinationPath)
System.Console.WriteLine("The directory move is complete.")
Catch exp As ArgumentNullException
System.Console.WriteLine("Path is a null reference.")
Catch exp As System.Security.SecurityException
System.Console.WriteLine("The caller does not have the " + _
"required permission.")
Catch exp As ArgumentException
System.Console.WriteLine("Path is an empty string, " + _
"contains only white spaces, " + _
"or contains invalid characters.")
Catch exp As System.IO.IOException
System.Console.WriteLine("An attempt was made to move a " + _
"directory to a different " + _
"volume, or destDirName " + _
"already exists.")
End Try
End Sub
End Class
End Namespace
설명
매개 변수는 path 상대 또는 절대 경로 정보를 지정할 수 있습니다. 상대 경로 정보는 현재 작업 디렉터리를 기준으로 해석됩니다. 현재 작업 디렉터리를 가져오려면 를 참조하세요 GetCurrentDirectory.
후행 공백은 디렉터리를 가져오기 전에 매개 변수의 path 끝에서 제거됩니다.
이 메서드에서 반환된 문자열은 마지막 DirectorySeparatorChar 또는 AltDirectorySeparatorChar까지의 경로에 있는 모든 문자로 구성되지만 포함하지는 않습니다. 예를 들어 "C:\Directory\SubDirectory\test.txt" 경로를 전달하면 GetParent "C:\Directory\SubDirectory"가 반환됩니다. "C:\Directory\SubDirectory"를 전달하면 "C:\Directory"가 반환됩니다. 그러나 "C:\Directory\SubDirectory\"를 전달하면 끝 디렉터리 구분 기호가 "SubDirectory" 다음에 있기 때문에 "C:\Directory\SubDirectory"가 반환됩니다.
매개 변수의 path 대/소문자 구분은 코드가 실행 중인 파일 시스템의 대/소문자 구분에 해당합니다. 예를 들어 NTFS(기본 Windows 파일 시스템)에서는 대/소문자를 구분하지 않으며 Linux 파일 시스템에서는 대/소문자를 구분합니다.
일반적인 I/O 작업 목록은 일반적인 I/O 작업을 참조하세요.
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