WebPermissionAttribute.Connect Propiedad

Definición

Espacio de nombres:

System.Net

Ensamblado:

System.Security.Permissions.dll

Paquete:

System.Security.Permissions v9.0.0-rc.2.24473.5

Source:

WebPermissionAttribute.cs

Obtiene o establece la cadena de conexión URI controlada por el WebPermissionAttribute actual.

public:
 property System::String ^ Connect { System::String ^ get(); void set(System::String ^ value); };

public string Connect { get; set; }

member this.Connect : string with get, set

Public Property Connect As String

Valor de propiedad

String

Una cadena que contiene la conexión URI controlada por el WebPermissionAttribute actual.

Excepciones

ArgumentException

El valor de la propiedad Connect no es null cuando se intenta establecer. Si desea especificar más de un URI de conexión, utilice una instrucción de declaración de atributo adicional.

Ejemplos

En el ejemplo siguiente se muestra cómo usar WebPermissionAttribute para especificar una cadena permitida Connect .

public:
   // Set the WebPermissionAttribute  Connect property.
   [method:WebPermission(SecurityAction::Deny,Connect="http://www.contoso.com/Private.htm")]

   static void demoDenySite()
   {
      //Pass the security check.
      CheckConnectPermission( "http://www.contoso.com/Public.htm" );
      Console::WriteLine( "Public page has passed connect permission check" );

      try
      {
         //Throw a SecurityException.
         CheckConnectPermission( "http://www.contoso.com/Private.htm" );
         Console::WriteLine( "This line will not be printed" );
      }
      catch ( SecurityException^ e ) 
      {
         Console::WriteLine( "Expected exception {0}", e->Message );
      }
   }

   static void CheckConnectPermission( String^ uriToCheck )
   {
      WebPermission^ permissionToCheck = gcnew WebPermission;
      permissionToCheck->AddPermission( NetworkAccess::Connect, uriToCheck );
      permissionToCheck->Demand();
   }

// Set the WebPermissionAttribute  Connect property.
[WebPermission(SecurityAction.Deny, Connect=@"http://www.contoso.com/Private.htm")]

public static void demoDenySite() 
{
    //Pass the security check.
    CheckConnectPermission("http://www.contoso.com/Public.htm");
    Console.WriteLine("Public page has passed connect permission check");

    try 
    {
        //Throw a SecurityException.
        CheckConnectPermission("http://www.contoso.com/Private.htm");
        Console.WriteLine("This line will not be printed");
    }
    catch (SecurityException e) {
        Console.WriteLine("Expected exception" + e.Message);
    }
 }

public static void CheckConnectPermission(string uriToCheck) {
    WebPermission permissionToCheck = new WebPermission();
    permissionToCheck.AddPermission(NetworkAccess.Connect, uriToCheck);
    permissionToCheck.Demand();
}

' Set the WebPermissionAttribute  Connect property.
  <WebPermission(SecurityAction.Deny, Connect := "http://www.contoso.com/Private.htm")>  _
   Public Shared Sub CheckConnectPermission(uriToCheck As String)
   Dim permissionToCheck As New WebPermission()
   permissionToCheck.AddPermission(NetworkAccess.Connect, uriToCheck)
   permissionToCheck.Demand()
End Sub


Public Shared Sub demoDenySite()
   'Pass the security check.
   CheckConnectPermission("http://www.contoso.com/Public.htm")
   Console.WriteLine("Public page has passed Connect permission check")
   Try
      'Throw a SecurityException.
      CheckConnectPermission("http://www.contoso.com/Private.htm")
      Console.WriteLine("This line will not be printed")
   Catch e As SecurityException
      Console.WriteLine(("Expected exception" + e.Message))
   End Try
End Sub

Comentarios

Al aplicar WebPermissionAttribute a la clase , esta propiedad especifica qué conexión de URI se acepta para su uso dentro de la clase . Esta propiedad es de escritura una vez.

Consulte también

• Escribir protocolos acoplables