DirectoryInfo.MoveTo(String) 方法
定义
重要
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将 DirectoryInfo 实例及其内容移动到新路径。
public:
void MoveTo(System::String ^ destDirName);public void MoveTo (string destDirName);member this.MoveTo : string -> unitPublic Sub MoveTo (destDirName As String)参数
- destDirName
- String
要将此目录移动到的目标位置的名称和路径。 目标不能是另一个具有相同名称的磁盘卷或目录。 它可以是您要将此目录作为子目录添加到其中的一个现有目录。
例外
destDirName 为 null。
destDirName 是一个空字符串 (''")。
调用方没有所要求的权限。
找不到此目标目录。
示例
下面的示例演示如何移动目录。
using namespace System;
using namespace System::IO;
int main()
{
// Make a reference to a directory.
DirectoryInfo^ di = gcnew DirectoryInfo( "TempDir" );
// Create the directory only if it does not already exist.
if ( !di->Exists )
di->Create();
// Create a subdirectory in the directory just created.
DirectoryInfo^ dis = di->CreateSubdirectory( "SubDir" );
// Move the main directory. Note that the contents move with the directory.
if ( !Directory::Exists( "NewTempDir" ) )
di->MoveTo( "NewTempDir" );
try
{
// Attempt to delete the subdirectory. Note that because it has been
// moved, an exception is thrown.
dis->Delete( true );
}
catch ( Exception^ )
{
// Handle this exception in some way, such as with the following code:
// Console::WriteLine(S"That directory does not exist.");
}
// Point the DirectoryInfo reference to the new directory.
//di = new DirectoryInfo(S"NewTempDir");
// Delete the directory.
//di->Delete(true);
}
using System;
using System.IO;
public class MoveToTest
{
public static void Main()
{
// Make a reference to a directory.
DirectoryInfo di = new DirectoryInfo("TempDir");
// Create the directory only if it does not already exist.
if (di.Exists == false)
di.Create();
// Create a subdirectory in the directory just created.
DirectoryInfo dis = di.CreateSubdirectory("SubDir");
// Move the main directory. Note that the contents move with the directory.
if (Directory.Exists("NewTempDir") == false)
di.MoveTo("NewTempDir");
try
{
// Attempt to delete the subdirectory. Note that because it has been
// moved, an exception is thrown.
dis.Delete(true);
}
catch (Exception)
{
// Handle this exception in some way, such as with the following code:
// Console.WriteLine("That directory does not exist.");
}
// Point the DirectoryInfo reference to the new directory.
//di = new DirectoryInfo("NewTempDir");
// Delete the directory.
//di.Delete(true);
}
}
Imports System.IO
Public Class MoveToTest
Public Shared Sub Main()
' Make a reference to a directory.
Dim di As New DirectoryInfo("TempDir")
' Create the directory only if it does not already exist.
If di.Exists = False Then
di.Create()
End If
' Create a subdirectory in the directory just created.
Dim dis As DirectoryInfo = di.CreateSubdirectory("SubDir")
If Directory.Exists("NewTempDir") = False Then
' Move the main directory. Note that the contents move with the directory.
di.MoveTo("NewTempDir")
End If
Try
' Attempt to delete the subdirectory. Note that because it has been
' moved, an exception is thrown.
dis.Delete(True)
Catch
' Handle this exception in some way, such as with the following code:
' Console.WriteLine("That directory does not exist.");
' Point the DirectoryInfo reference to the new directory.
' di = New DirectoryInfo("NewTempDir")
' Delete the directory.
' di.Delete(True)
End Try
End Sub
End Class
注解
例如，如果尝试将 IOException c：\mydir 移动到 c：\public，并且 c：\public 已存在，则此方法将引发 。 必须指定"c： \public \mydir"作为参数，或指定新的目录名称，例如 \ \ destDirName "c： \\newdir"。
此方法允许将目录移动到只读目录。 这两个目录的读/写属性都不受影响。
有关常见 I/O 任务的列表，请参阅 常见 I/O 任务。