'Constructors set with different security modes
            Dim defaultNoSecurityPDBinding As New PollingDuplexHttpBinding()
            Dim transportSecurityPDBinding As New PollingDuplexHttpBinding(BasicHttpSecurityMode.Transport)
            Dim transportOnlySecurityPDBinding As New PollingDuplexHttpBinding(BasicHttpSecurityMode.TransportCredentialOnly)

            'Output txtSecurityMode for binding with transport security: Transport
            Dim txtSecurityMode As String = transportSecurityPDBinding.Security.Mode.ToString()


            'Inactivity timeout
            Dim binding As New PollingDuplexHttpBinding()

            'Get default inactivity timeout
            Dim defaultInactivityTimeOut As TimeSpan = binding.InactivityTimeout
            'Returns default timeout in minutes: 10
            Dim txtDefaultInactivityTimeOut As String = defaultInactivityTimeOut.Minutes.ToString()

            'Set new inactivity timeout
            Dim newInactivityTimeOut As New TimeSpan(0, 5, 0)
            binding.InactivityTimeout = newInactivityTimeOut
            'Returns new timeout in minutes: 5
            Dim txtNewInactivityTimeOut As String = binding.InactivityTimeout.Minutes.ToString()

            Dim pollingDuplexBinding As New PollingDuplexHttpBinding()
            Dim bindingEC As BindingElementCollection = pollingDuplexBinding.CreateBindingElements()
            'Check on binding elements contained in the collection
            Dim boolHTBE As Boolean = bindingEC.Contains(GetType(HttpTransportBindingElement))
            'Returns true
            Dim txtboolHTBE As String = boolHTBE.ToString()
            Dim boolHSTBE As Boolean = bindingEC.Contains(GetType(HttpsTransportBindingElement))
            'Returns false
            Dim txtboolHSTBE As String = boolHSTBE.ToString()

            //Constructors set with different security modes
            PollingDuplexHttpBinding defaultNoSecurityPDBinding = new PollingDuplexHttpBinding();
            PollingDuplexHttpBinding transportSecurityPDBinding = new PollingDuplexHttpBinding(BasicHttpSecurityMode.Transport);
            PollingDuplexHttpBinding transportOnlySecurityPDBinding = new PollingDuplexHttpBinding(BasicHttpSecurityMode.TransportCredentialOnly);

            //Output txtSecurityMode for binding with transport security: Transport
            string txtSecurityMode = transportSecurityPDBinding.Security.Mode.ToString();


            //Inactivity timeout
            PollingDuplexHttpBinding binding = new PollingDuplexHttpBinding();

            //Get default inactivity timeout
            TimeSpan defaultInactivityTimeOut = binding.InactivityTimeout;
            //Returns default timeout in minutes: 10
            string txtDefaultInactivityTimeOut = defaultInactivityTimeOut.Minutes.ToString();

            //Set new inactivity timeout
            TimeSpan newInactivityTimeOut = new TimeSpan(0, 5, 0);
            binding.InactivityTimeout = newInactivityTimeOut;
            //Returns new timeout in minutes: 5
            string txtNewInactivityTimeOut = binding.InactivityTimeout.Minutes.ToString();

            PollingDuplexHttpBinding pollingDuplexBinding = new PollingDuplexHttpBinding();
            BindingElementCollection bindingEC = pollingDuplexBinding.CreateBindingElements();
            //Check on binding elements contained in the collection
            bool boolHTBE = bindingEC.Contains(typeof(HttpTransportBindingElement));
            //Returns true
            string txtboolHTBE = boolHTBE.ToString();
            bool boolHSTBE = bindingEC.Contains(typeof(HttpsTransportBindingElement));
            //Returns false
            string txtboolHSTBE = boolHSTBE.ToString();