WebPermissionAttribute(SecurityAction) Constructor

Definition

Namespace:

System.Net

Assembly:

System.Security.Permissions.dll

Source:

WebPermissionAttribute.cs

Initializes a new instance of the WebPermissionAttribute class with a value that specifies the security actions that can be performed on this class.

public:
 WebPermissionAttribute(System::Security::Permissions::SecurityAction action);

public WebPermissionAttribute (System.Security.Permissions.SecurityAction action);

new System.Net.WebPermissionAttribute : System.Security.Permissions.SecurityAction -> System.Net.WebPermissionAttribute

Public Sub New (action As SecurityAction)

Parameters

action

SecurityAction

One of the SecurityAction values.

Exceptions

ArgumentException

action is not a valid SecurityAction value.

Examples

The following example demonstrates how to apply WebPermissionAttribute to a method.

public:
   // Set the declarative security for the URI.
   [WebPermission(SecurityAction::Deny,Connect="http://www.contoso.com/")]
   void Connect()
   {
      // Throw an exception.
      try
      {
         HttpWebRequest^ myWebRequest = dynamic_cast<HttpWebRequest^>(WebRequest::Create( "http://www.contoso.com/" ));
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Exception : {0}", e );
      }

public void Connect() 
{
  // Throw an exception.   
  try
  {
    HttpWebRequest myWebRequest = (HttpWebRequest)WebRequest.Create("http://www.contoso.com/");
  }
  catch(Exception e)
  {
    Console.WriteLine("Exception : " + e.ToString());
  }

  
  ' Set the declarative security for the URI.
  <WebPermission(SecurityAction.Deny, Connect := "http://www.contoso.com/")> _
  Public Sub Connect()
     ' Throw an exception.	 
     Try
        Dim myWebRequest As HttpWebRequest = CType(WebRequest.Create("http://www.contoso.com"), HttpWebRequest)
     Catch e As Exception
        Console.WriteLine(("Exception : " + e.ToString()))
     End Try
  End Sub

Remarks

The SecurityAction value passed to this constructor specifies the allowable security actions that can be performed on this class.