WebPermission.Union(IPermission) Método

Definição

Namespace:

System.Net

Assembly:

System.Security.Permissions.dll

Pacote:

System.Security.Permissions v8.0.0

Origem:

WebPermission.cs

Retorna a união lógica entre duas instâncias da classe WebPermission.

public:
 override System::Security::IPermission ^ Union(System::Security::IPermission ^ target);

public override System.Security.IPermission Union (System.Security.IPermission target);

override this.Union : System.Security.IPermission -> System.Security.IPermission

Public Overrides Function Union (target As IPermission) As IPermission

Parâmetros

target

IPermission

O WebPermission a ser combinado com o WebPermission atual.

Retornos

IPermission

Um WebPermission que representa a união da instância atual com o parâmetro target. Se qualquer WebPermission for Unrestricted, o método retornará um WebPermission que será Unrestricted. Se o destino for null, o método retornará uma cópia do WebPermission atual.

Exceções

ArgumentException

o destino não é null ou do tipo WebPermission.

Exemplos

O exemplo a seguir usa a união lógica de duas WebPermission instâncias para criar uma terceira instância de WebPermission.

// Create another WebPermission that is the Union of previous two WebPermission
// instances.
WebPermission^ myWebPermission3 = (WebPermission^)(myWebPermission1->Union( myWebPermission2 ));
Console::WriteLine( "\nAttributes and values of the WebPermission after the Union are : " );
// Display the attributes, values and children.
Console::WriteLine( myWebPermission3->ToXml() );

// Create another WebPermission that is the Union of previous two WebPermission 
// instances.
WebPermission myWebPermission3 =(WebPermission) myWebPermission1.Union(myWebPermission2);
Console.WriteLine("\nAttributes and values of the WebPermission after the Union are : ");
// Display the attributes,values and children.
Console.WriteLine(myWebPermission3.ToXml().ToString());

   ' Create another WebPermission that is the Union of previous two WebPermission 
   ' instances.
   Dim myWebPermission3 As WebPermission = CType(myWebPermission1.Union(myWebPermission2), WebPermission)
   Console.WriteLine(ControlChars.Cr + "Attributes and values of the WebPermission after the Union are : ")
   ' Display the attributes,values and children.
   Console.WriteLine(myWebPermission3.ToXml().ToString())
End Sub

Comentários

Union retorna um WebPermission que contém todas as permissões em target e na instância atual.

Confira também

• PermissionState