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)
public WebPermissionAttribute (
	SecurityAction action
public function WebPermissionAttribute (
	action : SecurityAction



One of the SecurityAction values.

Exception typeCondition


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 := "http://www.contoso.com/")> _
Public Sub Connect()
   ' Throw an exception.     
      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 'Connect

// Set the declarative security for the URI.
/** @attribute WebPermission(SecurityAction.Deny, Connect = 
public void Connect()
    // Throw an exception.   
    try {
        HttpWebRequest myWebRequest = (HttpWebRequest)(
    catch (System.Exception e) {
        Console.WriteLine("Exception : " + e.ToString());
} //Connect

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0