WebPermission.FromXml(SecurityElement) Méthode

Définition

Espace de noms:

System.Net

Assembly:

System.Security.Permissions.dll

Paquet:

System.Security.Permissions v9.0.0-preview.3.24172.9

Source:

WebPermission.cs

Reconstruit WebPermission à partir d'un encodage XML.

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)

Paramètres

securityElement

SecurityElement

Encodage XML à partir duquel reconstruire WebPermission.

Exceptions

ArgumentNullException

Le paramètre securityElement a la valeur null.

ArgumentException

securityElement n'est pas un élément d'autorisation pour ce type.

Exemples

L’exemple suivant crée un System.Security.SecurityElement, remplit ses attributs et utilise FromXml pour transférer ces informations vers un instance de WebPermission.

// 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())

Remarques

La FromXml méthode reconstruit un à partir d’un WebPermission encodage XML défini par la SecurityElement classe .

Utilisez la ToXml méthode pour encoder xml , y compris les WebPermissioninformations d’état.

Voir aussi

• ToXml()