AddPermission Method

SocketPermission.AddPermission Method

Adds a permission to the set of permissions for a transport address.

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

Public Sub AddPermission ( _
	access As NetworkAccess, _
	transport As TransportType, _
	hostName As String, _
	portNumber As Integer _


Type: System.Net.NetworkAccess
One of the NetworkAccess values.
Type: System.Net.TransportType
One of the TransportType values.
Type: System.String
The host name for the transport address.
Type: System.Int32
The port number for the transport address.


hostName is Nothing.

The hostName can be a DNS name, an IP address, or a specified IP subnet, such as 192.168.1.*.

The following example uses the AddPermission method to add connection permissions to the specified host.

' <Snippet6>        

        Dim socketPermission1 As New SocketPermission(PermissionState.Unrestricted)

        'Create a 'SocketPermission' object for two ip addresses.
        Dim socketPermission2 As New SocketPermission(PermissionState.None)
        Dim securityElement1 As SecurityElement = socketPermission2.ToXml()
        ''SocketPermission' object for 'Connect' permission
        Dim securityElement2 As New SecurityElement("ConnectAccess")
        'Format to specify ip address are <ip-address>#<port>#<transport-type>
        'First 'SocketPermission' ip-address is '' for 'All' transport types and for 'All'
        ' ports for the ip-address.
        Dim securityElement3 As New SecurityElement("URI", "")
        'Second 'SocketPermission' ip-address is '' for 'All' transport types and for 'All' ports for the ip-address.
        Dim securityElement4 As New SecurityElement("URI", "")

        'Obtain a 'SocketPermission' object using 'FromXml' method.

        Console.WriteLine(ControlChars.Cr + "Displays the result of FromXml method : " + ControlChars.Cr)

        'Create another 'SocketPermission' object with two ip addresses.
        'First 'SocketPermission' ip-address is '' for 'All' transport types and for 'All' ports for the ip-address.
        Dim socketPermission3 As New SocketPermission(NetworkAccess.Connect, TransportType.All, "", SocketPermission.AllPorts)

        'Second 'SocketPermission' ip-address is '' for 'All' transport types and for 'All' ports for the ip-address.
        socketPermission3.AddPermission(NetworkAccess.Connect, TransportType.All, "", SocketPermission.AllPorts)

        Console.WriteLine("Displays the result of AddPermission method : " + ControlChars.Cr)

        'Find the intersection between two 'SocketPermission' objects.
        socketPermission1 = CType(socketPermission2.Intersect(socketPermission3), SocketPermission)

        Console.WriteLine("Displays the result of Intersect method :" + ControlChars.Cr + " ")
        'Demand that the calling method have the requsite socket permission.
' </Snippet3>

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Community Additions

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