SocketPermission.FromXml メソッド

.NET Framework クラス ライブラリ リファレンス

SocketPermission.FromXml メソッド

XML エンコーディング用の SocketPermission インスタンスを再構築します。

名前空間: System.Net
アセンブリ: System (system.dll 内)
構文

Visual Basic (宣言)

Public Overrides Sub FromXml
 ( _
    securityElement As SecurityElement _
)

Visual Basic (使用法)

Dim instance As SocketPermission
Dim securityElement As SecurityElement

instance.FromXml(securityElement)

C#

public override void FromXml (
    SecurityElement securityElement
)

C++

public:
virtual void FromXml (
    SecurityElement^ securityElement
) override

J#

public void FromXml (
    SecurityElement securityElement
)

JScript

public override function FromXml (
    securityElement : SecurityElement
)

パラメータ

securityElement

SocketPermission インスタンスの再構築に使用する XML エンコーディング。

例外

例外の種類	条件
ArgumentNullException	securityElement が null 参照 (Visual Basic では Nothing) です。
ArgumentException	securityElement が、この種類のアクセス許可要素ではありません。

解説

FromXml メソッドは、SecurityElement クラスで定義される XML エンコーディングから SocketPermission インスタンスを再構築します。

ToXml メソッドを使用して、状態情報を含む SocketPermission インスタンスを XML でエンコードします。

使用例

FromXml メソッドを使用して、XML エンコード済みのデータを SocketPermission インスタンスに変換する例を次に示します。

Visual Basic

Dim socketPermission1 As New
 SocketPermission(PermissionState.Unrestricted)

'Create a 'SocketPermission' object for two ip addresses.
Dim socketPermission2 As New
 SocketPermission(PermissionState.None)
Dim securityElement1 As SecurityElement = socketPermission2.ToXml()
''SocketPermission' object for 'Connect' permission
Dim securityElement2 As New
 SecurityElement("ConnectAccess")
'Format to specify ip address are <ip-address>#<port>#<transport-type>
'First 'SocketPermission' ip-address is '192.168.144.238' for 'All'
 transport types and for 'All'
' ports for the ip-address.
Dim securityElement3 As New
 SecurityElement("URI", "192.168.144.238#-1#3")
'Second 'SocketPermission' ip-address is '192.168.144.240' for 'All'
 transport types and for 'All' ports for the ip-address.
Dim securityElement4 As New
 SecurityElement("URI", "192.168.144.240#-1#3")
securityElement2.AddChild(securityElement3)
securityElement2.AddChild(securityElement4)
securityElement1.AddChild(securityElement2)


'Obtain a 'SocketPermission' object using 'FromXml' method.
socketPermission2.FromXml(securityElement1)

Console.WriteLine(ControlChars.Cr + "Displays the result of FromXml
 method : " + ControlChars.Cr)
Console.WriteLine(socketPermission2.ToString())

'Create another 'SocketPermission' object with two ip addresses.
'First 'SocketPermission' ip-address is '192.168.144.238' for 'All'
 transport types and for 'All' ports for the ip-address.
Dim socketPermission3 As New
 SocketPermission(NetworkAccess.Connect, TransportType.All, "192.168.144.238",
 SocketPermission.AllPorts)

'Second 'SocketPermission' ip-address is '192.168.144.239' for 'All'
 transport types and for 'All' ports for the ip-address.
socketPermission3.AddPermission(NetworkAccess.Connect, TransportType.All, "192.168.144.239",
 SocketPermission.AllPorts)

Console.WriteLine("Displays the result of AddPermission method
 : " + ControlChars.Cr)
Console.WriteLine(socketPermission3.ToString())

'Find the intersection between two 'SocketPermission' objects.
socketPermission1 = CType(socketPermission2.Intersect(socketPermission3), SocketPermission)

Console.WriteLine("Displays the result of Intersect method :"
 + ControlChars.Cr + " ")
Console.WriteLine(socketPermission1.ToString())
'Demand that the calling method have the requsite socket permission.
socketPermission1.Demand()

C#

  SocketPermission socketPermission1 = new SocketPermission(PermissionState.Unrestricted);

  // Create a 'SocketPermission' object for two ip addresses.
  SocketPermission socketPermission2 = new SocketPermission(PermissionState.None);
  SecurityElement securityElement1 = socketPermission2.ToXml();
  // 'SocketPermission' object for 'Connect' permission
  SecurityElement securityElement2 = new SecurityElement("ConnectAccess");
  // Format to specify ip address are <ip-address>#<port>#<transport-type>
  // First 'SocketPermission' ip-address is '192.168.144.238' for 'All'
 transport types and 
// for 'All'ports for the ip-address.
  SecurityElement securityElement3 = new SecurityElement("URI",
 "192.168.144.238#-1#3");
  // Second 'SocketPermission' ip-address is '192.168.144.240' for 'All'
 transport types and 
// for 'All' ports for the ip-address.
  SecurityElement securityElement4 = new SecurityElement("URI",
 "192.168.144.240#-1#3");
  securityElement2.AddChild(securityElement3);
  securityElement2.AddChild(securityElement4);
  securityElement1.AddChild(securityElement2);
  
 // Obtain a 'SocketPermission' object using 'FromXml' method.
  socketPermission2.FromXml(securityElement1);

  Console.WriteLine("\nDisplays the result of FromXml method : \n");
  Console.WriteLine(socketPermission2.ToString());

  // Create another 'SocketPermission' object with two ip addresses.
  // First 'SocketPermission' ip-address is '192.168.144.238' for 'All'
 transport types and for 'All' ports for the ip-address.
  SocketPermission socketPermission3 = 
                  new SocketPermission(NetworkAccess.Connect,
                                       TransportType.All,
                                       "192.168.144.238",
                                       SocketPermission.AllPorts);

 // Second 'SocketPermission' ip-address is '192.168.144.239' for 'All'
 transport types and for 'All' ports for the ip-address.
  socketPermission3.AddPermission(NetworkAccess.Connect,
                                 TransportType.All,
                                 "192.168.144.239",
                                 SocketPermission.AllPorts);

  Console.WriteLine("Displays the result of AddPermission method : \n");
  Console.WriteLine(socketPermission3.ToString());

 // Find the intersection between two 'SocketPermission' objects.
  socketPermission1 = (SocketPermission)socketPermission2.Intersect(socketPermission3);

  Console.WriteLine("Displays the result of Intersect method :\n ");
  Console.WriteLine(socketPermission1.ToString());

  // Demand that the calling method have the requsite socket permission.
  socketPermission1.Demand();

C++

SocketPermission^ socketPermission1 = gcnew SocketPermission( PermissionState::Unrestricted
 );

// Create a 'SocketPermission' Object* for two ip addresses.
SocketPermission^ socketPermission2 = gcnew SocketPermission( PermissionState::None
 );
SecurityElement^ securityElement1 = socketPermission2->ToXml();
// 'SocketPermission' Object* for 'Connect' permission
SecurityElement^ securityElement2 = gcnew SecurityElement( "ConnectAccess"
 );
// Format to specify ip address are <ip-address>#<port>#<transport-type>
// First 'SocketPermission' ip-address is '192.168.144.238' for 'All'
 transport types and
// for 'All'ports for the ip-address.
SecurityElement^ securityElement3 = gcnew SecurityElement( "URI","192.168.144.238#-1#3"
 );
// Second 'SocketPermission' ip-address is '192.168.144.240' for 'All'
 transport types and
// for 'All' ports for the ip-address.
SecurityElement^ securityElement4 = gcnew SecurityElement( "URI","192.168.144.240#-1#3"
 );
securityElement2->AddChild( securityElement3 );
securityElement2->AddChild( securityElement4 );
securityElement1->AddChild( securityElement2 );

// Obtain a 'SocketPermission' Object* using 'FromXml' method.
socketPermission2->FromXml( securityElement1 );

Console::WriteLine( "\nDisplays the result of FromXml method : \n" );
Console::WriteLine( socketPermission2 );

// Create another 'SocketPermission' Object* with two ip addresses.
// First 'SocketPermission' ip-address is '192.168.144.238' for 'All'
 transport types and for 'All' ports for the ip-address.
SocketPermission^ socketPermission3 =
   gcnew SocketPermission( NetworkAccess::Connect,
      TransportType::All,
      "192.168.144.238",
      SocketPermission::AllPorts );

// Second 'SocketPermission' ip-address is '192.168.144.239' for 'All'
 transport types and for 'All' ports for the ip-address.
socketPermission3->AddPermission( NetworkAccess::Connect,
   TransportType::All,
   "192.168.144.239",
   SocketPermission::AllPorts );

Console::WriteLine( "Displays the result of AddPermission method : \n"
 );
Console::WriteLine( socketPermission3 );

// Find the intersection between two 'SocketPermission' objects.
socketPermission1 = dynamic_cast<SocketPermission^>(socketPermission2->Intersect(
 socketPermission3 ));

Console::WriteLine( "Displays the result of Intersect method :\n " );
Console::WriteLine( socketPermission1 );

// Demand that the calling method have the requsite socket permission.
socketPermission1->Demand();

J#

SocketPermission socketPermission1 = 
    new SocketPermission(PermissionState.Unrestricted);

// Create a 'SocketPermission' object for two ip addresses.
SocketPermission socketPermission2 = 
    new SocketPermission(PermissionState.None);
SecurityElement securityElement1 = socketPermission2.ToXml();

// 'SocketPermission' object for 'Connect' permission
SecurityElement securityElement2 = new SecurityElement("ConnectAccess");

// Format to specify ip address are <ip-address>#<port>#<transport-type>
// First 'SocketPermission' ip-address is '192.168.144.238' for 'All'
 
// transport types and for 'All'ports for the ip-address.
SecurityElement securityElement3 = 
    new SecurityElement("URI", "192.168.144.238#-1#3");

// Second 'SocketPermission' ip-address is '192.168.144.240' for 
// 'All' transport types and for 'All' ports for the ip-address.
SecurityElement securityElement4 = 
    new SecurityElement("URI", "192.168.144.240#-1#3");

securityElement2.AddChild(securityElement3);
securityElement2.AddChild(securityElement4);
securityElement1.AddChild(securityElement2);

// Obtain a 'SocketPermission' object using 'FromXml' method.
socketPermission2.FromXml(securityElement1);
Console.WriteLine("\nDisplays the result of FromXml method : \n");
Console.WriteLine(socketPermission2.ToString());

// Create another 'SocketPermission' object with two ip addresses.
// First 'SocketPermission' ip-address is '192.168.144.238' for 
// 'All' transport types and for 'All' ports for the ip-address.
SocketPermission socketPermission3 = 
    new SocketPermission(NetworkAccess.Connect, TransportType.All,
 
    "192.168.144.238", SocketPermission.AllPorts);

// Second 'SocketPermission' ip-address is '192.168.144.239' for 
// 'All' transport types and for 'All' ports for the ip-address.
socketPermission3.AddPermission(NetworkAccess.Connect,
    TransportType.All, "192.168.144.239", SocketPermission.AllPorts);
Console.WriteLine("Displays the result of AddPermission method : \n");
Console.WriteLine(socketPermission3.ToString());

// Find the intersection between two 'SocketPermission' objects.
socketPermission1 = (SocketPermission) 
    socketPermission2.Intersect(socketPermission3);
Console.WriteLine("Displays the result of Intersect method :\n ");
Console.WriteLine(socketPermission1.ToString());

// Demand that the calling method have the requsite socket permission.
socketPermission1.Demand();

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
SocketPermission クラス
SocketPermission メンバ
System.Net 名前空間