Export (0) Print
Expand All

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
'Usage
Dim instance As SocketPermission
Dim value As IEnumerator

value = instance.ConnectList

/** @property */
public IEnumerator get_ConnectList ()

public function get ConnectList () : IEnumerator

Not applicable.

Property Value

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()

SocketPermission socketPermission1 = 
    new SocketPermission(PermissionState.Unrestricted);

// Create a 'SocketPermission' object for two ip addresses.
SocketPermission socketPermission2 = 
    new SocketPermission(PermissionState.None);
SecurityElement securityElement4 = socketPermission2.ToXml();

// 'SocketPermission' object for 'Connect' permission
SecurityElement securityElement1 = 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.
SecurityElement securityElement2 = 
    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.
SecurityElement securityElement3 = 
    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.
SocketPermission socketPermission3 = 
    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("\nChecks the Socket permissions using "
    + "IsUnrestricted method : ");
if (socketPermission1.IsUnrestricted()) {
    Console.WriteLine("Socket permission is unrestricted");
}
else {
    Console.WriteLine("Socket permission is restricted");
}

Console.WriteLine();
Console.WriteLine("Display result of ConnectList property : \n");

IEnumerator enumerator = socketPermission3.get_ConnectList();

while (enumerator.MoveNext()) {
    Console.WriteLine("The hostname is       : {0}", 
        ((EndpointPermission)enumerator.get_Current()).get_Hostname());
    Console.WriteLine("The port is           : {0}", (Int32)
        ((EndpointPermission)enumerator.get_Current()).get_Port());
    Console.WriteLine("The Transport type is : {0}", 
        ((EndpointPermission)enumerator.get_Current()).get_Transport());
}

Console.WriteLine("");
Console.WriteLine("Display Security Elements :\n ");
PrintSecurityElement(socketPermission2.ToXml(), 0);

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

// Demand that the calling method have the socket permission.
socketPermission1.Demand();

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

Community Additions

ADD
Show:
© 2014 Microsoft