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WebPermissionAttribute Constructor

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

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

Public Sub New ( _
	action As SecurityAction _
Dim action As SecurityAction 

Dim instance As New WebPermissionAttribute(action)


Type: System.Security.Permissions.SecurityAction

One of the SecurityAction values.


action is not a valid SecurityAction value.

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

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

' Set the declarative security for the URI.
<WebPermission(SecurityAction.Deny, Connect := "")> _
Public Sub Connect()
   ' Throw an exception.	  
      Dim myWebRequest As HttpWebRequest = CType(WebRequest.Create(""), HttpWebRequest)
   Catch e As Exception
      Console.WriteLine(("Exception : " + e.ToString()))
   End Try 
End Sub 'Connect
// Set the declarative security for the URI.
[WebPermission(SecurityAction::Deny, Connect = S"")]
void Connect() {
   // Throw an exception.
   try {
      HttpWebRequest* myWebRequest =
   } catch (Exception* e) {
      Console::WriteLine(S"Exception : {0}", e);

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0