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SocketPermission.ConnectList Property

Gets a list of EndpointPermission instances that identifies the endpoints that can be connected to under this permission instance.

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

'Declaration
Public ReadOnly Property ConnectList As IEnumerator

Property Value

Type: System.Collections.IEnumerator
An instance that implements the IEnumerator interface that contains EndpointPermission instances.

The following example uses the ConnectList property to return a list of endpoints to which connection privileges are granted.

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 '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address. 
        Dim securityElement2 As New SecurityElement("URI", "192.168.144.238#-1#3")
        'Second 'SocketPermission' ip-address is '192.168.144.240' for 'All' transport types and for 'All' ports for the ip-address. 
        Dim securityElement3 As New SecurityElement("URI", "192.168.144.240#-1#3")
        securityElement1.AddChild(securityElement2)
        securityElement1.AddChild(securityElement3)
        securityElement4.AddChild(securityElement1)

        'Obtain a 'SocketPermission' object using 'FromXml' method.	
        socketPermission2.FromXml(securityElement4)

        'Create another 'SocketPermission' object with two ip addresses. 
        'First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address. 
        Dim socketPermission3 As New SocketPermission(NetworkAccess.Connect, TransportType.All, "192.168.144.238", SocketPermission.AllPorts)

        'Second 'SocketPermission' ip-address is '192.168.144.239' for 'All' transport types and for 'All' ports for the ip-address.
        socketPermission3.AddPermission(NetworkAccess.Connect, TransportType.All, "192.168.144.239", SocketPermission.AllPorts)

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

        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("")

        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.
        socketPermission1.Demand()

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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