UIPermission.IsSubsetOf メソッドとは? わかりやすく解説

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UIPermission.IsSubsetOf メソッド

現在のアクセス許可が、指定したアクセス許可サブセットかどうか判断します

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

Public Overrides Function
 IsSubsetOf ( _
    target As IPermission _
) As Boolean
Dim instance As UIPermission
Dim target As IPermission
Dim returnValue As Boolean

returnValue = instance.IsSubsetOf(target)
public override bool IsSubsetOf (
    IPermission target
)
public:
virtual bool IsSubsetOf (
    IPermission^ target
) override
public boolean IsSubsetOf (
    IPermission target
)
public override function IsSubsetOf (
    target : IPermission
) : boolean

パラメータ

target

サブセットの関係を調べアクセス許可。このアクセス許可は、現在のアクセス許可と同じ型である必要があります

戻り値
現在のアクセス許可が、指定したアクセス許可サブセットである場合trueそれ以外場合false

例外例外
例外種類条件

ArgumentException

target パラメータnull 参照 (Visual Basic では Nothing) ではなく現在のアクセス許可と同じ型でもありません。

解説解説
使用例使用例

詳細については、UIPermission クラストピック参照してください

    ' The IsSubsetOf method determines whether the current permission is
 a
    ' subset of the specified permission. This demo uses the IsSubsetOf
 method
    ' to determine the relationship of two UIPermissionWindow permissions
 and
    ' two UIPermissionClipboard permissions.
    Private Function IsSubsetOfWindowAndClipboardDemo()
 As Boolean
        Dim returnValue As Boolean
 = True
        Dim ui1, ui2 As UIPermissionWindow
        Dim cb1, cb2 As UIPermissionClipboard
        Dim uiIdPerm1, uiIdPerm2 As UIPermission
        Dim uiGen1 As New
 UIGenerator()
        Dim uiGen2 As New
 UIGenerator()
        uiGen1.ResetIndex()
        While uiGen1.CreateUI(ui1, cb1)
            uiIdPerm1 = New UIPermission(ui1, cb1)
            uiGen2.ResetIndex()
            Console.WriteLine("********************************************************"
 & ControlChars.Lf)

            While uiGen2.CreateUI(ui2, cb2)
                uiIdPerm2 = New UIPermission(ui2, cb2)
                Try
                    If uiIdPerm1.IsSubsetOf(uiIdPerm2) Then
                        Console.WriteLine(uiIdPerm1.Window.ToString() & "
 and " _
                        & uiIdPerm1.Clipboard.ToString() & "
 is a subset of " _
                        & uiIdPerm2.Window.ToString() & "
  and  " & uiIdPerm2.Clipboard.ToString())
                    Else
                        Console.WriteLine(uiIdPerm1.Window.ToString() & "
 and " _
                        & uiIdPerm1.Clipboard.ToString() & "
 is not a subset of " _
                        & uiIdPerm2.Window.ToString() & "
 and " & uiIdPerm2.Clipboard)
                    End If
                Catch e As Exception
                    Console.WriteLine("An exception was thrown
  for subset :" & uiIdPerm1.ToString() _
                    & ControlChars.Lf & uiIdPerm2.ToString() & ControlChars.Lf
 & e.ToString())
                    returnValue = False
                End Try
ContinueWhile2:
            End While
ContinueWhile1:
        End While
        Return returnValue
    End Function 'IsSubsetOfWindowAndClipboardDemo

    ' Compare two UIPemissionWindow permissions.
    Private Function IsSubsetOfWindowDemo()
 As Boolean
        Dim returnValue As Boolean
 = True
        Dim ui1, ui2 As UIPermissionWindow
        Dim uiIdPerm1, uiIdPerm2 As UIPermission
        Dim uiGen1 As New
 UIGenerator()
        Dim uiGen2 As New
 UIGenerator()
        uiGen1.ResetIndex()
        While uiGen1.CreateUI(ui1)
            uiIdPerm1 = New UIPermission(ui1)
            uiGen2.ResetIndex()
            Console.WriteLine("********************************************************"
 & ControlChars.Lf)

            While uiGen2.CreateUI(ui2)
                uiIdPerm2 = New UIPermission(ui2)
                Try
                    If uiIdPerm1.IsSubsetOf(uiIdPerm2) Then
                        Console.WriteLine(uiIdPerm1.Window.ToString() & "
 is a subset of " _
                        & uiIdPerm2.Window.ToString())
                    Else
                        Console.WriteLine(uiIdPerm1.Window.ToString() & "
 is not a subset of " _
                        & uiIdPerm2.Window.ToString())
                    End If
                Catch e As Exception
                    Console.WriteLine(("An exception was thrown
  for subset :" & uiIdPerm1.ToString() _
                    & ControlChars.Lf & uiIdPerm2.ToString() & ControlChars.Lf
 & e.ToString()))
                    returnValue = False
                End Try
ContinueWhile2:
            End While
ContinueWhile1:
        End While
        Return returnValue
    End Function 'IsSubsetOfWindowDemo

    ' Compare two UIPermissionClipboard permissions.
    Private Function IsSubsetOfClipboardDemo()
 As Boolean
        Dim returnValue As Boolean
 = True
        Dim cb1, cb2 As UIPermissionClipboard
        Dim uiIdPerm1, uiIdPerm2 As UIPermission
        Dim uiGen1 As New
 UIGenerator()
        Dim uiGen2 As New
 UIGenerator()
        uiGen1.ResetIndex()
        While uiGen1.CreateUI(cb1)
            uiIdPerm1 = New UIPermission(cb1)
            uiGen2.ResetIndex()
            Console.WriteLine("********************************************************"
 & ControlChars.Lf)

            While uiGen2.CreateUI(cb2)
                uiIdPerm2 = New UIPermission(cb2)
                Try
                    If uiIdPerm1.IsSubsetOf(uiIdPerm2) Then
                        Console.WriteLine(uiIdPerm1.Clipboard.ToString() & "
 is a subset of " _
                        & uiIdPerm2.Clipboard.ToString())
                    Else
                        Console.WriteLine(uiIdPerm1.Clipboard.ToString() & "
 is not a subset of " _
                        & uiIdPerm2.Clipboard.ToString())
                    End If
                Catch e As Exception
                    Console.WriteLine("An exception was thrown
  for subset :" _
                    & uiIdPerm1.ToString() & ControlChars.Lf & uiIdPerm2.ToString()
 _
                    & ControlChars.Lf & e.ToString())
                    returnValue = False
                End Try
ContinueWhile2:
            End While
ContinueWhile1:
        End While
        Return returnValue
    End Function 'IsSubsetOfClipboardDemo

// The IsSubsetOf method determines whether the current permission is
 a
// subset of the specified permission. This demo uses the IsSubsetOf
// method to determine the relationship of two UIPermissionWindow
// permissions and two UIPermissionClipboard permissions.
private bool IsSubsetOfWindowAndClipboardDemo()
{
    bool returnValue = true;
    UIPermissionWindow ui1, ui2;
    UIPermissionClipboard cb1, cb2;
    UIPermission uiIdPerm1, uiIdPerm2;
    UIGenerator uiGen1 = new UIGenerator();
    UIGenerator uiGen2 = new UIGenerator();
    uiGen1.ResetIndex();
    while (uiGen1.CreateUI( out ui1, out cb1))
    {
        uiIdPerm1 = new UIPermission(ui1, cb1);
        uiGen2.ResetIndex();
        Console.WriteLine("********************************************************\n");

        while (uiGen2.CreateUI(out ui2, out cb2))
        {
            uiIdPerm2 = new UIPermission(ui2, cb2);
            try
            {
                if (uiIdPerm1.IsSubsetOf(uiIdPerm2))
                {
                    Console.WriteLine(uiIdPerm1.Window + " and " + uiIdPerm1.Clipboard
 + " is a subset of " +
                        uiIdPerm2.Window + " and " + uiIdPerm2.Clipboard);
                }
                else
                {
                    Console.WriteLine(uiIdPerm1.Window + " and " + uiIdPerm1.Clipboard
 + " is not a subset of " +
                        uiIdPerm2.Window + " and " + uiIdPerm2.Clipboard);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("An exception was thrown for
 subset :" + uiIdPerm1 + "\n" +
                    uiIdPerm2 + "\n" + e);
                returnValue = false;
            }
        }
    }
    return returnValue;
}
// Compare two UIPemissionWindow permissions.
private bool IsSubsetOfWindowDemo()
{
    bool returnValue = true;
    UIPermissionWindow ui1, ui2;
    UIPermission uiIdPerm1, uiIdPerm2;
    UIGenerator uiGen1 = new UIGenerator();
    UIGenerator uiGen2 = new UIGenerator();
    uiGen1.ResetIndex();
    while (uiGen1.CreateUI(out ui1))
    {
        uiIdPerm1 = new UIPermission(ui1);
        uiGen2.ResetIndex();
        Console.WriteLine("********************************************************\n");

        while (uiGen2.CreateUI(out ui2))
        {
            uiIdPerm2 = new UIPermission(ui2);
            try
            {
                if (uiIdPerm1.IsSubsetOf(uiIdPerm2))
                {
                    Console.WriteLine(uiIdPerm1.Window + " is a subset of "
 + uiIdPerm2.Window);
                }
                else
                {
                    Console.WriteLine(uiIdPerm1.Window + " is not a subset of
 " + uiIdPerm2.Window);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("An exception was thrown for
 subset :" + uiIdPerm1 + "\n" +
                    uiIdPerm2 + "\n" + e);
                returnValue = false;
            }
        }
    }
    return returnValue;
}
// Compare two UIPermissionClipboard permissions.
private bool IsSubsetOfClipboardDemo()
{
    bool returnValue = true;
    UIPermissionClipboard cb1, cb2;
    UIPermission uiIdPerm1, uiIdPerm2;
    UIGenerator uiGen1 = new UIGenerator();
    UIGenerator uiGen2 = new UIGenerator();
    uiGen1.ResetIndex();
    while (uiGen1.CreateUI(out cb1))
    {
        uiIdPerm1 = new UIPermission(cb1);
        uiGen2.ResetIndex();
        Console.WriteLine("********************************************************\n");

        while (uiGen2.CreateUI(out cb2))
        {
            uiIdPerm2 = new UIPermission(cb2);
            try
            {
                if (uiIdPerm1.IsSubsetOf(uiIdPerm2))
                {
                    Console.WriteLine(uiIdPerm1.Clipboard + " is a subset of
 " + uiIdPerm2.Clipboard);
                }
                else
                {
                    Console.WriteLine(uiIdPerm1.Clipboard + " is not a subset
 of " + uiIdPerm2.Clipboard);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("An exception was thrown for
 subset :" + uiIdPerm1 + "\n" +
                    uiIdPerm2 + "\n" + e);
                returnValue = false;
            }
        }
    }
    return returnValue;
}
// The IsSubsetOf method determines whether the current permission is
 a
// subset of the specified permission. This demo uses the IsSubsetOf
// method to determine the relationship of two UIPermissionWindow
// permissions and two UIPermissionClipboard permissions.
bool IsSubsetOfWindowAndClipboardDemo()
{
   bool returnValue = true;
   UIPermissionWindow ui1;
   UIPermissionWindow ui2;
   UIPermissionClipboard cb1;
   UIPermissionClipboard cb2;
   UIPermission^ uiIdPerm1;
   UIPermission^ uiIdPerm2;
   UIGenerator^ uiGen1 = gcnew UIGenerator;
   UIGenerator^ uiGen2 = gcnew UIGenerator;
   uiGen1->ResetIndex();
   while ( uiGen1->CreateUI(   &ui1,  &cb1 ) )
   {
      uiIdPerm1 = gcnew UIPermission( ui1, cb1 );

      uiGen2->ResetIndex();
      Console::WriteLine( "********************************************************\n"
 );
      while ( uiGen2->CreateUI(  &ui2,  &cb2 ) )
      {
         uiIdPerm2 = gcnew UIPermission( ui2, cb2 );
         try
         {
            if ( uiIdPerm1->IsSubsetOf( uiIdPerm2 ) )
            {
               Console::WriteLine( "{0} and {1} is a subset of {2}  and  {3}",
 uiIdPerm1->Window, uiIdPerm1->Clipboard, uiIdPerm2->Window, uiIdPerm2->Clipboard
 );
            }
            else
            {
               Console::WriteLine( "{0} and {1} is not a subset of {2} and {3}",
 uiIdPerm1->Window, uiIdPerm1->Clipboard, uiIdPerm2->Window, uiIdPerm2->Clipboard
 );
            }
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( "An exception was thrown  for
 subset :{0}\n{1}\n{2}", uiIdPerm1, uiIdPerm2, e );
            returnValue = false;
         }

      }
   }

   return returnValue;
}


// Compare two UIPemissionWindow permissions.
bool IsSubsetOfWindowDemo()
{
   bool returnValue = true;
   UIPermissionWindow ui1;
   UIPermissionWindow ui2;
   UIPermission^ uiIdPerm1;
   UIPermission^ uiIdPerm2;
   UIGenerator^ uiGen1 = gcnew UIGenerator;
   UIGenerator^ uiGen2 = gcnew UIGenerator;
   uiGen1->ResetIndex();
   while ( uiGen1->CreateUI( &ui1 ) )
   {
      uiIdPerm1 = gcnew UIPermission( ui1 );

      uiGen2->ResetIndex();
      Console::WriteLine( "********************************************************\n"
 );
      while ( uiGen2->CreateUI( &ui2 ) )
      {
         uiIdPerm2 = gcnew UIPermission( ui2 );
         try
         {
            if ( uiIdPerm1->IsSubsetOf( uiIdPerm2 ) )
            {
               Console::WriteLine( "{0} is a subset of {1}", uiIdPerm1->Window,
 uiIdPerm2->Window );
            }
            else
            {
               Console::WriteLine( "{0} is not a subset of {1}", uiIdPerm1->Window,
 uiIdPerm2->Window );
            }
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( "An exception was thrown  for
 subset :{0}\n{1}\n{2}", uiIdPerm1, uiIdPerm2, e );
            returnValue = false;
         }

      }
   }

   return returnValue;
}


// Compare two UIPermissionClipboard permissions.
bool IsSubsetOfClipboardDemo()
{
   bool returnValue = true;
   UIPermissionClipboard cb1;
   UIPermissionClipboard cb2;
   UIPermission^ uiIdPerm1;
   UIPermission^ uiIdPerm2;
   UIGenerator^ uiGen1 = gcnew UIGenerator;
   UIGenerator^ uiGen2 = gcnew UIGenerator;
   uiGen1->ResetIndex();
   while ( uiGen1->CreateUI( &cb1 ) )
   {
      uiIdPerm1 = gcnew UIPermission( cb1 );

      uiGen2->ResetIndex();
      Console::WriteLine( "********************************************************\n"
 );
      while ( uiGen2->CreateUI( &cb2 ) )
      {
         uiIdPerm2 = gcnew UIPermission( cb2 );
         try
         {
            if ( uiIdPerm1->IsSubsetOf( uiIdPerm2 ) )
            {
               Console::WriteLine( "{0} is a subset of {1}", uiIdPerm1->Clipboard,
 uiIdPerm2->Clipboard );
            }
            else
            {
               Console::WriteLine( "{0} is not a subset of {1}", uiIdPerm1->Clipboard,
 uiIdPerm2->Clipboard );
            }
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( "An exception was thrown  for
 subset :{0}\n{1}\n{2}", uiIdPerm1, uiIdPerm2, e );
            returnValue = false;
         }

      }
   }

   return returnValue;
}


// The IsSubsetOf method determines whether the current permission is
 
// a subset of the specified permission.
// This demo uses the IsSubsetOf method to determine the relationship
 
// of two UIPermissionWindow permissions and two UIPermissionClipboard
 
// permissions.
private boolean IsSubsetOfWindowAndClipboardDemo()
{
    boolean returnValue = true;
    UIPermissionWindow ui1[] = new UIPermissionWindow[1];
    UIPermissionWindow ui2[] = new UIPermissionWindow[1];
    UIPermissionClipboard cb1[] = new UIPermissionClipboard[1];
    UIPermissionClipboard cb2[] = new UIPermissionClipboard[1];
    UIPermission uiIdPerm1[] = new UIPermission[1];
    UIPermission uiIdPerm2[] = new UIPermission[1];
    UIGenerator uiGen1 = new UIGenerator();
    UIGenerator uiGen2 = new UIGenerator();

    uiGen1.ResetIndex();
    while (uiGen1.CreateUI(uiIdPerm1, ui1, cb1)) {
        if (uiIdPerm1[0] == null) {
            continue;
        }
        uiGen2.ResetIndex();
        Console.WriteLine("**************************************" 
            + "******************\n");
        while (uiGen2.CreateUI(uiIdPerm2, ui2, cb2)) {
            if (uiIdPerm2[0] == null) {
                continue;
            }
            try    {
                if (uiIdPerm1[0].IsSubsetOf(uiIdPerm2[0])) {
                    Console.WriteLine((uiIdPerm1[0].get_Window() 
                        + " and " + uiIdPerm1[0].get_Clipboard() 
                        + " is a subset of " + uiIdPerm2[0].get_Window()
 
                        + " and " + uiIdPerm2[0].get_Clipboard()));
                }
                else {
                    Console.WriteLine((uiIdPerm1[0].get_Window() 
                    + " and " + uiIdPerm1[0].get_Clipboard() 
                    + " is not a subset of " + uiIdPerm2[0].get_Window()
 
                    + " and " + uiIdPerm2[0].get_Clipboard()));
                }
            }
            catch (System.Exception e) {
                Console.WriteLine(("An exception was " 
                    + "thrown for subset :" 
                    + uiIdPerm1[0] + "\n" + uiIdPerm2[0] + "\n"
 + e));
                returnValue = false;
            }
        }
    }
    return returnValue;
} //IsSubsetOfWindowAndClipboardDemo

// Compare two UIPemissionWindow permissions.
private boolean IsSubsetOfWindowDemo()
{
    boolean returnValue = true;
    UIPermissionWindow ui1[] = new UIPermissionWindow[1];
    UIPermissionWindow ui2[] = new UIPermissionWindow[1];
    UIPermission uiIdPerm1[] = new UIPermission[1];
    UIPermission uiIdPerm2[] = new UIPermission[1];
    UIGenerator uiGen1 = new UIGenerator();
    UIGenerator uiGen2 = new UIGenerator();

    uiGen1.ResetIndex();
    while (uiGen1.CreateUI(uiIdPerm1, ui1)) {
        if (uiIdPerm1[0] == null) {
            continue;
        }
        uiGen2.ResetIndex();
        Console.WriteLine("********************************" 
            + "************************\n");
        while (uiGen2.CreateUI(uiIdPerm2, ui2)) {
            if (uiIdPerm2[0] == null) {
                continue;
            }
            try {
                if (uiIdPerm1[0].IsSubsetOf(uiIdPerm2[0])) {
                    Console.WriteLine((uiIdPerm1[0].get_Window() 
                        + " is a subset of " + uiIdPerm2[0].get_Window()));
                }
                else {
                    Console.WriteLine((uiIdPerm1[0].get_Window() 
                        + " is not a subset of " 
                        + uiIdPerm2[0].get_Window()));
                }
            }
            catch (System.Exception e) {
                Console.WriteLine(("An exception was " 
                    + "thrown for subset :" + uiIdPerm1[0]
 
                    + "\n" + uiIdPerm2[0] + "\n" + e));
                returnValue = false;
            }
        }
    }
    return returnValue;
} //IsSubsetOfWindowDemo

// Compare two UIPermissionClipboard permissions.
private boolean IsSubsetOfClipboardDemo()
{
    boolean returnValue = true;
    UIPermissionClipboard cb1[] = new UIPermissionClipboard[1];
    UIPermissionClipboard cb2[] = new UIPermissionClipboard[1];
    UIPermission uiIdPerm1[] = new UIPermission[1];
    UIPermission uiIdPerm2[] = new UIPermission[1];
    UIGenerator uiGen1 = new UIGenerator();
    UIGenerator uiGen2 = new UIGenerator();

    uiGen1.ResetIndex();
    while (uiGen1.CreateUI(uiIdPerm1, cb1)) {
        if (uiIdPerm1[0] == null) {
            continue;
        }
        uiGen2.ResetIndex();
        Console.WriteLine("********************************" 
            + "************************\n");
        while (uiGen2.CreateUI(uiIdPerm2, cb2)) {
            if (uiIdPerm2[0] == null) {
                continue;
            }
            try {
                if (uiIdPerm1[0].IsSubsetOf(uiIdPerm2[0])) {
                    Console.WriteLine((uiIdPerm1[0].get_Clipboard() 
                        + " is a subset of " 
                        + uiIdPerm2[0].get_Clipboard()));
                }
                else {
                    Console.WriteLine((uiIdPerm1[0].get_Clipboard() 
                        + " is not a subset of " 
                        + uiIdPerm2[0].get_Clipboard()));
                }
            }
            catch (System.Exception e) {
                Console.WriteLine(("An exception was thrown " 
                    + "for subset :" + uiIdPerm1[0]
 + "\n" 
                    + uiIdPerm2[0] + "\n" + e));
                returnValue = false;
            }
        }
    }
    return returnValue;
} //IsSubsetOfClipboardDemo
プラットフォームプラットフォーム
バージョン情報バージョン情報
参照参照
関連項目
UIPermission クラス
UIPermission メンバ
System.Security.Permissions 名前空間


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