FileIOPermission.Copy メソッド

.NET Framework クラス ライブラリ リファレンス

FileIOPermission.Copy メソッド

現在のアクセス許可のコピーを作成して返します。

名前空間: System.Security.Permissions
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Overrides Function
 Copy As IPermission

Visual Basic (使用法)

Dim instance As FileIOPermission
Dim returnValue As IPermission

returnValue = instance.Copy

C#

public override IPermission Copy ()

C++

public:
virtual IPermission^ Copy () override

J#

public IPermission Copy ()

JScript

public override function Copy () : IPermission

戻り値
現在のアクセス許可のコピー。

解説

アクセス許可のコピーは、リソースに対して、コピー元のアクセス許可と同じアクセス権を表します。

使用例

Visual Basic

    Private Function CopyDemo() As
 Boolean
        Dim returnValue As Boolean
 = True
        Dim fileIO1 As String
 = ""
        Dim fileIOPerm1, fileIOPerm2 As FileIOPermission
        Dim fileIOGen1 As New
 FileIOGenerator()
        Dim fileIOGen2 As New
 FileIOGenerator()

        fileIOGen1.ResetIndex()
        While fileIOGen1.CreateFilePath(fileIO1)
            If fileIO1 = "" Then
                fileIOPerm1 = New FileIOPermission(PermissionState.None)
            Else
                fileIOPerm1 = New FileIOPermission(FileIOPermissionAccess.Read,
 fileIO1)
            End If
            Console.WriteLine("**********************************************************"
 & ControlChars.Lf)
            fileIOGen2.ResetIndex()
            Try
                fileIOPerm2 = CType(fileIOPerm1.Copy(), FileIOPermission)
                If Not (fileIOPerm2 Is
 Nothing) Then
                    Console.WriteLine(("Result of copy = "
 & fileIOPerm2.ToString() & ControlChars.Lf))
                Else
                    Console.WriteLine("Result of copy is null.
 " & ControlChars.Lf)
                End If
            Catch e As Exception
                If (True.ToString()) Then
                    If fileIO1 = "" Then
                        Console.WriteLine("The target FileIOPermission
 is empty, copy failed.")

                    Else
                        Console.WriteLine(e.ToString())
                    End If
                End If
                GoTo ContinueWhile1
            End Try
ContinueWhile1:
        End While
        Return returnValue
    End Function 'CopyDemo

C#

private bool CopyDemo()
{
    bool returnValue = true;
    string fileIO1;
    FileIOPermission fileIOPerm1, fileIOPerm2;
    FileIOGenerator fileIOGen1 = new FileIOGenerator();
    FileIOGenerator fileIOGen2 = new FileIOGenerator();

    fileIOGen1.ResetIndex();
    while (fileIOGen1.CreateFilePath( out fileIO1 ))
    {
        if (fileIO1 == "")
            fileIOPerm1 = new FileIOPermission(PermissionState.None);
        else
            fileIOPerm1 = new FileIOPermission(FileIOPermissionAccess.Read,
 fileIO1);

        Console.WriteLine("**********************************************************\n");
        fileIOGen2.ResetIndex();
        try
        {
            fileIOPerm2 = (FileIOPermission)fileIOPerm1.Copy();
            if (fileIOPerm2 != null)
            {
                Console.WriteLine("Result of copy = " + fileIOPerm2.ToString()
 + "\n");
            }
            else
            {
                Console.WriteLine("Result of copy is null.
 \n");
            }
        }
        catch (Exception e)
        {
            {
                if (fileIO1 == "")
                {
                    Console.WriteLine("The target FileIOPermission is empty,
 copy failed.");

                }
                else
                    Console.WriteLine(e);
            }
            continue;
        }
    }
    return returnValue;
}

C++

bool CopyDemo()
{
   bool returnValue = true;
   String^ fileIO1;
   FileIOPermission^ fileIOPerm1;
   FileIOPermission^ fileIOPerm2;
   FileIOGenerator^ fileIOGen1 = gcnew FileIOGenerator;
   FileIOGenerator^ fileIOGen2 = gcnew FileIOGenerator;
   fileIOGen1->ResetIndex();
   while ( fileIOGen1->CreateFilePath( &fileIO1 ) )
   {
      if (fileIO1 == "")
          fileIOPerm1 = gcnew FileIOPermission(PermissionState::None);
       else
           fileIOPerm1 = gcnew FileIOPermission(FileIOPermissionAccess::Read, fileIO1);

      Console::WriteLine( "**********************************************************\n"
 );
      fileIOGen2->ResetIndex();
      try
      {
         fileIOPerm2 = dynamic_cast<FileIOPermission^>(fileIOPerm1->Copy());
         if ( fileIOPerm2 != nullptr )
         {
            Console::WriteLine( "Result of copy = {0}\n", fileIOPerm2 );
         }
         else
         {
            Console::WriteLine( "Result of copy is null.
 \n" );
         }
      }
      catch ( Exception^ e ) 
      {
         {
            if ( fileIO1->Equals( "" ) )
            {
               Console::WriteLine( "The target FileIOPermission is empty, copy
 failed." );
            }
            else
                           Console::WriteLine( e );
         }
         continue;
      }

   }

   return returnValue;
}

J#

//Copy creates and returns an identical copy of the current permission.
private boolean CopyDemo() 
{
    boolean returnValue = true;
    String fileIO1[] = new String[1];
    FileIOPermission fileIOPerm1[] = new FileIOPermission[1];
    FileIOPermission fileIOPerm2[] = new FileIOPermission[1];
    FileIOGenerator fileIOGen1 =  new FileIOGenerator();
    FileIOGenerator fileIOGen2 =  new FileIOGenerator();
    
    fileIOGen1.ResetIndex();
    while(fileIOGen1.CreateFilePath(fileIOPerm1, fileIO1, 
        FileIOPermissionAccess.Read)) {
            if (fileIO1 == null) {
                continue ;
            }
            Console.WriteLine("**********************************" 
            + "************************\n");
            fileIOGen2.ResetIndex();
            try {
                fileIOPerm2[0] =((FileIOPermission)(fileIOPerm1[0].Copy()));
                if (fileIOPerm2[0]  != null)
 {
                    Console.WriteLine(("Result of copy = " 
                    + fileIOPerm2[0].ToString() + "\n"));
                }
                else {
                    Console.WriteLine("Result of copy is null.
 \n");
                }
            }
            catch(System.Exception e) {
                if (fileIO1[0].Equals("")) {
                    Console.WriteLine("The target FileIOPermission " 
                        + "is empty, copy failed.");
                }
                else {
                    Console.WriteLine(e);
                }
            }
            continue ;
        }
    return returnValue ;
} //CopyDemo   

プラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
FileIOPermission クラス
FileIOPermission メンバ
System.Security.Permissions 名前空間