AIParkingApplication/AIParkingApplication/StatusBar.cs

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Threading;

namespace AIParkingApplication
{
    public partial class StatusBar : UserControl
    {
        private string webServerIP;
        private string c3IP;
        public StatusBar(string webServerIP, string c3IP)
        {
            InitializeComponent();
            this.webServerIP = webServerIP;
            this.c3IP = c3IP;
            Thread thrStatus = new Thread(new ThreadStart(UpdateStatus));
            thrStatus.IsBackground = true;
            thrStatus.Start();
        }

        private void UpdateStatus()
        {
            while (true)
            {
                if (IsHandleCreated)
                {
                    lblDateTime.Invoke(new Action(() =>
                    {
                        lblDateTime.Text = DateTime.Now.ToString(AppConstant.DATETIME_FORMAT);
                    }));

                    lblPingTimeC3.Invoke(new Action(() =>
                    {
                        PingResult pingResult = GetPingStatus(c3IP);
                        lblPingTimeC3.Text = $"{pingResult.ReplyTime} ms";
                        lblPingTimeC3.BackColor = pingResult.BackColor;
                        lblPingTimeC3.ForeColor = pingResult.ForceColor;
                    }));

                    lblPingTimeServer.Invoke(new Action(() =>
                    {
                        PingResult pingResult = GetPingStatus(webServerIP);
                        lblPingTimeServer.Text = $"{pingResult.ReplyTime} ms";
                        lblPingTimeServer.BackColor = pingResult.BackColor;
                        lblPingTimeServer.ForeColor = pingResult.ForceColor;
                    }));
                }
                Thread.Sleep(1000);
            }
        }

        private PingResult GetPingStatus(string ip)
        {
            PingResult pingResult = new PingResult();
            bool isPingable;
            isPingable = Util.IsPingable(ip, out long replyTime);
            if (isPingable)
                switch (replyTime)
                {
                    case long n when (n >= 0 && n < 1):
                        pingResult.ReplyTime = 1;
                        pingResult.BackColor = Color.Green;
                        break;
                    case long n when (n >= 1 && n < 50):
                        pingResult.ReplyTime = replyTime;
                        pingResult.BackColor = Color.Green;
                        break;
                    case long n when (n >= 50):
                        pingResult.ReplyTime = replyTime;
                        pingResult.BackColor = Color.Red;
                        break;
                }
            else
            {
                pingResult.ReplyTime = 0;
                pingResult.BackColor = Color.Gray;
            }
            return pingResult;
        }

        private class PingResult
        {
            public long ReplyTime { get; set; }
            public Color BackColor { get; set; }
            public Color ForceColor { get; set; }
        }
    }
}