WebPermission.FromXml-Methode

Rekonstruiert eine WebPermission aus einer XML-Codierung.

Namespace: System.Net
Assembly: System (in system.dll)

Syntax

'Declaration
Public Overrides Sub FromXml ( _
    securityElement As SecurityElement _
)
'Usage
Dim instance As WebPermission
Dim securityElement As SecurityElement

instance.FromXml(securityElement)

public override void FromXml (
    SecurityElement securityElement
)

public:
virtual void FromXml (
    SecurityElement^ securityElement
) override

public void FromXml (
    SecurityElement securityElement
)

public override function FromXml (
    securityElement : SecurityElement
)

Parameter

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

Ausnahmen

Hinweise

Die FromXml-Methode rekonstruiert eine WebPermission aus einer XML-Codierung, die durch die SecurityElement-Klasse definiert ist.

Verwenden Sie die ToXml-Methode, um die WebPermission einschließlich der Zustandsinformationen in XML zu codieren.

Beispiel

Im folgenden Beispiel wird ein System.Security.SecurityElement erstellt, dessen Attribute werden aufgefüllt, und diese Informationen werden mithilfe von FromXml an eine Instanz von WebPermission übertragen.

' 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())

// 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
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());

Plattformen

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

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

WebPermission-Klasse
WebPermission-Member
System.Net-Namespace
ToXml