This documentation is archived and is not being maintained.

SocketPermission.IsUnrestricted Method

Checks the overall permission state of the object.

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

Public Function IsUnrestricted As Boolean

Return Value

Type: System.Boolean
true if the SocketPermission instance is created with the Unrestricted value from PermissionState; otherwise, false.



The following example checks the IsUnrestricted property to determine if the specified SocketPermission has any restrictions.

	Dim socketPermission1 As New SocketPermission(PermissionState.Unrestricted)
        'Create a 'SocketPermission' object for two ip addresses.
        Dim socketPermission2 As New SocketPermission(PermissionState.None)
        Dim securityElement4 As SecurityElement = socketPermission2.ToXml()
        ''SocketPermission' object for 'Connect' permission
        Dim securityElement1 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 securityElement2 As New SecurityElement("URI", "")
        'Second 'SocketPermission' ip-address is '' for 'All' transport types and for 'All' ports for the ip-address.
        Dim securityElement3 As New SecurityElement("URI", "")

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

        '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(ControlChars.Cr + "Checks the Socket permissions using IsUnrestricted method : ")
        If socketPermission1.IsUnrestricted() Then
            Console.WriteLine("Socket permission is unrestricted")
            Console.WriteLine("Socket permission is restricted")
        End If 

        Console.WriteLine("Display result of ConnectList property : " + ControlChars.Cr)
        Dim enumerator As IEnumerator = socketPermission3.ConnectList
        While enumerator.MoveNext()
            Console.WriteLine("The hostname is       : {0}", CType(enumerator.Current, EndpointPermission).Hostname)
            Console.WriteLine("The port is           : {0}", CType(enumerator.Current, EndpointPermission).Port)
            Console.WriteLine("The Transport type is : {0}", CType(enumerator.Current, EndpointPermission).Transport)
        End While


        Console.WriteLine("Display Security Elements :" + ControlChars.Cr + " ")
        PrintSecurityElement(socketPermission2.ToXml(), 0)

        'Get a 'SocketPermission' object which is a union of two other 'SocketPermission' objects.
        socketPermission1 = CType(socketPermission3.Union(socketPermission2), SocketPermission)

        'Demand that the calling method have the socket permission.

.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.