Opc.Ua.SampleClient.ClientPage.StandardClient_KeepAlive C# (CSharp) Method

        async void StandardClient_KeepAlive(Session sender, KeepAliveEventArgs e)
        {
            if (!Dispatcher.HasThreadAccess)
            {
                await Dispatcher.RunAsync(
                CoreDispatcherPriority.Normal,
                () =>
                {
                    StandardClient_KeepAlive( sender, e);
                });
                return;
            }

            if (sender != null && sender.Endpoint != null)
            {
                ServerUrlTB.Text = Utils.Format(
                    "{0} ({1}) {2}",
                    sender.Endpoint.EndpointUrl,
                    sender.Endpoint.SecurityMode,
                    (sender.EndpointConfiguration.UseBinaryEncoding) ? "UABinary" : "XML");
            }
            else
            {
                ServerUrlTB.Text = "None";
            }

            if (e != null && m_session != null)
            {
                SessionsCTRL.UpdateSessionNode(m_session);

                if (ServiceResult.IsGood(e.Status))
                {
                    ServerStatusTB.Text = Utils.Format(
                        "Server Status: {0} {1:yyyy-MM-dd HH:mm:ss} {2}/{3}",
                        e.CurrentState,
                        e.CurrentTime.ToLocalTime(),
                        m_session.OutstandingRequestCount,
                        m_session.DefunctRequestCount);
                    ServerStatusTB.Foreground = new SolidColorBrush(Colors.Black);
                    ServerStatusTB.FontWeight = FontWeights.Normal;
                }
                else
                {
                    ServerStatusTB.Text = String.Format(
                        "{0} {1}/{2}", e.Status,
                        m_session.OutstandingRequestCount,
                        m_session.DefunctRequestCount);
                    ServerStatusTB.Foreground = new SolidColorBrush(Colors.Red);
                    ServerStatusTB.FontWeight = FontWeights.Bold;
                }
            }
        }