ZoneIdentityPermission.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 zone1 As SecurityZone
    Dim zoneIdPerm1, zoneIdPerm2 As ZoneIdentityPermission
    Dim zoneGen1 As New zoneGenerator()
    Dim zoneGen2 As New zoneGenerator()
    zoneGen1.ResetIndex()
    While zoneGen1.CreateZone(zoneIdPerm1, zone1)
        If zoneIdPerm1 Is Nothing Then
            GoTo ContinueWhile1
        End If
        Console.WriteLine("********************************************************" & ControlChars.Cr)
        zoneGen2.ResetIndex()
        Try
            zoneIdPerm2 = New ZoneIdentityPermission(PermissionState.None)
            zoneIdPerm2.FromXml(zoneIdPerm1.ToXml())
            Console.WriteLine(("Result of ToFromXml = " & zoneIdPerm2.ToString()))

        Catch e As Exception
            Console.WriteLine(("ToFromXml failed :" & zoneIdPerm1.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;

        SecurityZone zone1;
        ZoneIdentityPermission zoneIdPerm1,zoneIdPerm2;
        ZoneGenerator zoneGen1 = new ZoneGenerator();
        ZoneGenerator zoneGen2 = new ZoneGenerator();
        zoneGen1.ResetIndex();
        while(zoneGen1.CreateZone(out zoneIdPerm1, out zone1)) 
        {
            if(zoneIdPerm1 == null) continue;
            Console.WriteLine("********************************************************\n");
            zoneGen2.ResetIndex();
        try
            {            
                zoneIdPerm2= new ZoneIdentityPermission(PermissionState.None);
                zoneIdPerm2.FromXml(zoneIdPerm1.ToXml());
                Console.WriteLine("Result of ToFromXml = " +
                    zoneIdPerm2.ToString());
    
            }
            catch(Exception e) 
            {
                Console.WriteLine("ToFromXml failed :" + zoneIdPerm1.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;

   SecurityZone zone1;
   ZoneIdentityPermission* zoneIdPerm1, *zoneIdPerm2;
   ZoneGenerator* zoneGen1 = new ZoneGenerator();
   ZoneGenerator* zoneGen2 = new ZoneGenerator();
   zoneGen1->ResetIndex();
   while(zoneGen1->CreateZone(&zoneIdPerm1, &zone1)) {
      if (zoneIdPerm1 == 0) continue;
      Console::WriteLine(S"********************************************************\n");
      zoneGen2->ResetIndex();
      try {
         zoneIdPerm2 = new ZoneIdentityPermission(PermissionState::None);
         zoneIdPerm2->FromXml(zoneIdPerm1->ToXml());
         Console::WriteLine(S"Result of ToFromXml = {0}", zoneIdPerm2);
      } catch (Exception* e) {
         Console::WriteLine(S"ToFromXml failed : {0}{1}", zoneIdPerm1, e);
         continue;
      }
   }

   return returnValue;

}

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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

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