UIPermission.Intersect メソッド

現在のアクセス許可と指定したアクセス許可の積集合を表すアクセス許可を作成して返します。

Overrides Public Function Intersect( _
   ByVal target As IPermission _) As IPermission Implements IPermission.Intersect
[C#]
public override IPermission Intersect(IPermissiontarget);
[C++]
public: IPermission* Intersect(IPermission* target);
[JScript]
public override function Intersect(
   target : IPermission) : IPermission;

パラメータ

• target
  現在のアクセス許可との積集合を持つアクセス許可。これは、現在のアクセス許可と同じ型であることが必要です。

戻り値

現在のアクセス許可と指定したアクセス許可の積集合を表す新しいアクセス許可。積集合が空の場合、この新しいアクセス許可は null 参照 (Visual Basic では Nothing) です。

実装

IPermission.Intersect

例外

解説

2 つのアクセス許可の積集合となるアクセス許可には、両方に共通する操作の集合が記述されています。つまり、この積集合は、現在のアクセス許可と指定されたアクセス許可の値の UIPermissionWindow と UIPermissionClipboard の最小許容値を表します。

使用例

 
' Intersect creates and returns a new permission that is the intersection of the current 
' permission and the permission specified.
Private Function IntersectDemo() As Boolean
    Dim returnValue As Boolean = True
    Dim ui1, ui2 As UIPermissionWindow
    Dim cb1, cb2 As UIPermissionClipboard
    Dim uiIdPerm1, uiIdPerm2, uiIdPerm3 As UIPermission
    Dim uiGen1 As New UIGenerator()
    Dim uiGen2 As New UIGenerator()
    uiGen1.ResetIndex()
    While uiGen1.CreateUI(uiIdPerm1, ui1, cb1)
        If uiIdPerm1 Is Nothing Then
            GoTo ContinueWhile1
        End If
        Console.WriteLine("**********************************************************" & ControlChars.Lf)
        uiGen2.ResetIndex()

        While uiGen2.CreateUI(uiIdPerm2, ui2, cb2)
            If uiIdPerm2 Is Nothing Then
                GoTo ContinueWhile2
            End If
            uiIdPerm3 = CType(uiIdPerm1.Intersect(uiIdPerm2), UIPermission)
            If Not (uiIdPerm3 Is Nothing) Then
                Console.WriteLine(("The intersection of " & uiIdPerm1.Window.ToString() & " and " _
                & uiIdPerm1.Clipboard.ToString() & " with " & uiIdPerm2.Window.ToString() _
                & " and " & uiIdPerm2.Clipboard.ToString() & " = " & ControlChars.Lf _
                & ControlChars.Tab & CType(uiIdPerm3, UIPermission).Window.ToString() & " and " _
                & CType(uiIdPerm3, UIPermission).Clipboard.ToString()))
            Else
                Console.WriteLine(("The intersection of " & ui1.ToString() & " and " & cb1.ToString() _
                & " with " & ui2.ToString() & " and " & cb2.ToString() & " is null."))
            End If
ContinueWhile2:
        End While
ContinueWhile1:
    End While

    Return returnValue
End Function 'IntersectDemo


[C#] 
// Intersect creates and returns a new permission that is the intersection of the current 
// permission and the permission specified.
    private bool IntersectDemo()
    {
        bool returnValue = true;
        UIPermissionWindow ui1,ui2;
        UIPermissionClipboard cb1, cb2;
        UIPermission uiIdPerm1,uiIdPerm2,uiIdPerm3;
        UIGenerator uiGen1 = new UIGenerator();
        UIGenerator uiGen2 = new UIGenerator();
        uiGen1.ResetIndex();
        while(uiGen1.CreateUI(out uiIdPerm1, out ui1, out cb1)) 
        {
            if(uiIdPerm1 == null) continue;
            Console.WriteLine("**********************************************************\n");
            uiGen2.ResetIndex();

            while(uiGen2.CreateUI(out uiIdPerm2, out ui2, out cb2)) 
            {
                if(uiIdPerm2 == null) continue;
                uiIdPerm3 = (UIPermission)uiIdPerm1.Intersect(uiIdPerm2);
                if (uiIdPerm3 != null)
                {
                    Console.WriteLine("The intersection of " + uiIdPerm1.Window + " and " + uiIdPerm1.Clipboard + " with " + 
                        uiIdPerm2.Window + " and " + uiIdPerm2.Clipboard + " = \n\t" + 
                        ((UIPermission)uiIdPerm3).Window.ToString() + " and " + ((UIPermission)uiIdPerm3).Clipboard.ToString());
                }
                else
                {
                    Console.WriteLine("The intersection of " + ui1 + " and " + cb1 + " with " + ui2 + " and " 
                        + cb2 + " is null." );
                }
            }
        }

        return returnValue;
    }

[C++] 
// Intersect creates and returns a new permission that is the intersection of the current 
// permission and the permission specified.
private:
bool IntersectDemo()
{
    bool returnValue = true;
    UIPermissionWindow ui1,ui2;
    UIPermissionClipboard cb1, cb2;
    UIPermission* uiIdPerm1;
    UIPermission* uiIdPerm2;
    UIPermission* uiIdPerm3;
    UIGenerator* uiGen1 = new UIGenerator();
    UIGenerator* uiGen2 = new UIGenerator();
    uiGen1->ResetIndex();
    while(uiGen1->CreateUI(&uiIdPerm1, &ui1, &cb1)) 
    {
        if(uiIdPerm1 == 0) continue;
        Console::WriteLine(S"**********************************************************\n");
        uiGen2->ResetIndex();

        while(uiGen2->CreateUI(&uiIdPerm2, &ui2, &cb2)) 
        {
            if(uiIdPerm2 == 0) continue;
            uiIdPerm3 = dynamic_cast<UIPermission*>(uiIdPerm1->Intersect(uiIdPerm2));
            if (uiIdPerm3 != 0)
            {
                Console::WriteLine(S"The intersection of {0} and {1} with {2} and {3} = \n\t{4} and {5}",
                    __box(uiIdPerm1->Window), __box(uiIdPerm1->Clipboard),
                    __box(uiIdPerm2->Window), __box(uiIdPerm2->Clipboard),
                    __box((dynamic_cast<UIPermission*>(uiIdPerm3))->Window)->ToString(),
                    __box((dynamic_cast<UIPermission*>(uiIdPerm3))->Clipboard)->ToString());
            }
            else
            {
                Console::WriteLine(S"The intersection of {0} and {1} with {2} and {3} is null.",
                    __box(ui1), __box(cb1), __box(ui2), __box(cb2));
            }
        }
    }

    return returnValue;
}

[JScript] JScript のサンプルはありません。Visual Basic、C#、および C++ のサンプルを表示するには、このページの左上隅にある言語のフィルタ ボタン をクリックします。

必要条件

プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ

参照

UIPermission クラス | UIPermission メンバ | System.Security.Permissions 名前空間