SocketPermission.FromXml(SecurityElement) SocketPermission.FromXml(SecurityElement) SocketPermission.FromXml(SecurityElement) Method

Definition

Rekonstruiert eine SocketPermission-Instanz aus einer XML-Codierung.Reconstructs a SocketPermission instance for an XML encoding.

public:
 override void FromXml(System::Security::SecurityElement ^ securityElement);
public override void FromXml (System.Security.SecurityElement securityElement);
override this.FromXml : System.Security.SecurityElement -> unit

Parameter

securityElement
SecurityElement SecurityElement SecurityElement

Die XML-Codierung, die zum Rekonstrieren der SocketPermission-Instanz verwendet wird.The XML encoding used to reconstruct the SocketPermission instance.

Ausnahmen

securityElement ist null.The securityElement is null.

securityElement ist kein Berechtigungselement für diesen Typ.The securityElement is not a permission element for this type.

Beispiele

Im folgenden Beispiel wird die FromXml Methode zum Konvertieren von XML-codierten Daten an eine SocketPermission Instanz.The following example uses the FromXml method to convert XML encoded data to a SocketPermission instance.

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();
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();

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()

Hinweise

Die FromXml -Methode rekonstruiert eine SocketPermission -Instanz anhand einer XML-Codierung von definiert die SecurityElement Klasse.The FromXml method reconstructs a SocketPermission instance from an XML encoding defined by the SecurityElement class.

Verwenden der ToXml Methode zum Codieren der SocketPermission Instanz, einschließlich der Zustandsinformationen in XML.Use the ToXml method to encode the SocketPermission instance, including state information, in XML.

Gilt für: