WebPermission.FromXml(SecurityElement) Methode

Definition

Namespace:

System.Net

Assembly:

System.Security.Permissions.dll

Paket:

System.Security.Permissions v8.0.0

Quelle:

WebPermission.cs

Rekonstruiert eine WebPermission aus einer XML-Codierung.

public:
 override void FromXml(System::Security::SecurityElement ^ securityElement);

public override void FromXml (System.Security.SecurityElement securityElement);

override this.FromXml : System.Security.SecurityElement -> unit

Public Overrides Sub FromXml (securityElement As SecurityElement)

Parameter

securityElement

SecurityElement

Die XML-Codierung, aus der die WebPermission rekonstruiert wird.

Ausnahmen

ArgumentNullException

Der securityElement-Parameter ist null.

ArgumentException

securityElement ist kein Berechtigungselement für diesen Typ.

Beispiele

Im folgenden Beispiel wird ein System.Security.SecurityElementerstellt, das seine Attribute auffüllt und verwendetFromXml, um diese Informationen an eine instance von WebPermissionzu übertragen.

// Create  a WebPermission without permission on the protected resource
WebPermission^ myWebPermission1 = gcnew WebPermission( PermissionState::None );

// Create a SecurityElement by calling the ToXml method on the WebPermission
// instance and display its attributes (which hold the XML encoding of
// the WebPermission).
Console::WriteLine( "Attributes and Values of the WebPermission are:" );
myWebPermission1->ToXml();

// Create another WebPermission with no permission on the protected resource
WebPermission^ myWebPermission2 = gcnew WebPermission( PermissionState::None );

//Converts the new WebPermission from XML using myWebPermission1.
myWebPermission2->FromXml( myWebPermission1->ToXml() );

// Create  a WebPermission without permission on the protected resource.
WebPermission myWebPermission1 = new WebPermission(PermissionState.None);

// Create a SecurityElement by calling the ToXml method on the WebPermission 
// instance and display its attributes (which hold the XML encoding of 
// the WebPermission).
Console.WriteLine("Attributes and Values of the WebPermission are :");
myWebPermission1.ToXml().ToString();

// Create another WebPermission with no permission on the protected resource.
WebPermission myWebPermission2 = new WebPermission(PermissionState.None);

//Converts the new WebPermission from XML using myWebPermission1.
myWebPermission2.FromXml(myWebPermission1.ToXml());

' Create  a WebPermission without permission on the protected resource.
Dim myWebPermission1 As New WebPermission(PermissionState.None)

' Create a SecurityElement by calling the ToXml method on the WebPermission 
' instance and display its attributes (which hold the XML encoding of 
' the WebPermission).
Console.WriteLine("Attributes and Values of the WebPermission are :")
myWebPermission1.ToXml().ToString()

' Create another WebPermission with no permission on the protected resource.
Dim myWebPermission2 As New WebPermission(PermissionState.None)

'Converts the new WebPermission from XML using myWebPermission1.
myWebPermission2.FromXml(myWebPermission1.ToXml())

Hinweise

Die FromXml -Methode rekonstruiert eine WebPermission aus einer XML-Codierung, die von der SecurityElement -Klasse definiert wird.

Verwenden Sie die ToXml -Methode zum XML-Codieren von WebPermission, einschließlich Zustandsinformationen.

Weitere Informationen

• ToXml()