UIPermission.FromXml メソッド

XML エンコーディングから、指定した状態のアクセス許可を再構築します。

Overrides Public Sub FromXml( _
   ByVal esd As SecurityElement _) Implements ISecurityEncodable.FromXml
[C#]
public override void FromXml(SecurityElementesd);
[C++]
public: void FromXml(SecurityElement* esd);
[JScript]
public override function FromXml(
   esd : SecurityElement);

パラメータ

• esd
  アクセス許可の再構築に使用する XML エンコーディング。

実装

ISecurityEncodable.FromXml

例外

使用例

 
' ToXml creates an XML encoding of the permission and its current state; 
' FromXml reconstructs a permission with the specified state from the XML encoding. 
Private Function ToFromXmlDemo() As Boolean
    Dim returnValue As Boolean = True

    Dim ui1 As UIPermissionWindow
    Dim cb1 As UIPermissionClipboard
    Dim uiIdPerm1, uiIdPerm2 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()
        Try
            uiIdPerm2 = New UIPermission(PermissionState.None)
            uiIdPerm2.FromXml(uiIdPerm1.ToXml())
            Console.WriteLine(("Result of ToFromXml = " & uiIdPerm2.ToString()))

        Catch e As Exception
            Console.WriteLine(("ToFromXml failed :" & uiIdPerm1.ToString() & e.ToString()))
            GoTo ContinueWhile1
        End Try
ContinueWhile1:
    End While

    Return returnValue
End Function 'ToFromXmlDemo


[C#] 
// ToXml creates an XML encoding of the permission and its current state; 
// FromXml reconstructs a permission with the specified state from the XML encoding. 
    private bool ToFromXmlDemo()
    {
        bool returnValue = true;

        UIPermissionWindow ui1;
        UIPermissionClipboard cb1;
        UIPermission uiIdPerm1,uiIdPerm2;
        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();
        try
            {            
                uiIdPerm2= new UIPermission(PermissionState.None);
                uiIdPerm2.FromXml(uiIdPerm1.ToXml());
                Console.WriteLine("Result of ToFromXml = " +
                    uiIdPerm2.ToString());
    
            }
            catch(Exception e) 
            {
                Console.WriteLine("ToFromXml failed :" + uiIdPerm1.ToString() + e);
                continue;
            }
        }

        return returnValue;

    }

[C++] 
// ToXml creates an XML encoding of the permission and its current state; 
// FromXml reconstructs a permission with the specified state from the XML encoding. 
private:
bool ToFromXmlDemo()
{
    bool returnValue = true;

    UIPermissionWindow ui1;
    UIPermissionClipboard cb1;
    UIPermission* uiIdPerm1;
    UIPermission* uiIdPerm2;
    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();
        try
        {            
            uiIdPerm2= new UIPermission(PermissionState::None);
            uiIdPerm2->FromXml(uiIdPerm1->ToXml());
            Console::WriteLine(S"Result of ToFromXml = {0}", uiIdPerm2);

        }
        catch(Exception* e) 
        {
            Console::WriteLine(S"ToFromXml failed :{0}{1}", uiIdPerm1, e);
            continue;
        }
    }

    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