private void Form1_Load(object sender, EventArgs e)
        {
            btn_start.Tag = "STOP";

            if (!File.Exists("Settings.ini"))
            {
                FileStream fs = File.Create("Settings.ini");
                fs.Close();
            }

            IniFile iniFile = new IniFile();

            iniFile.Load("Settings.ini");


            if (iniFile["Setting"]["FieldNo"].ToString() == null || iniFile["Setting"]["Interval"].ToString() == null)
            {
                MessageBox.Show("초기 환경설정이 필요합니다. 환경설정으로 이동합니다.", "환경설정 필요", MessageBoxButtons.OK, MessageBoxIcon.Information);
                if (new SettingForm().ShowDialog() != DialogResult.OK)
                {
                    this.Close();
                    return;
                }
            }
            else
            {
                GLOBAL.FieldNo = iniFile["Setting"]["FieldNo"].ToString();
                int.TryParse(iniFile["Setting"]["Interval"].ToString(), out GLOBAL.Interval);

                string response = GLOBAL.HttpWebRequest("http://198.13.51.149/gytech/getsensorlist.php");

                JObject resobj     = JObject.Parse(response);
                JArray  arr_fields = (JArray)resobj["FieldList"];

                foreach (JObject field in arr_fields)
                {
                    if (field["No"].ToString().Equals(GLOBAL.FieldNo.ToString()))
                    {
                        GLOBAL.FieldName = field["FieldName"].ToString();
                        break;
                    }
                }
            }

            lbl_fieldname.Text = "현장명 : " + GLOBAL.FieldName;
            lbl_filepath.Text  = iniFile["Setting"]["FileName"].ToString();
        }
        private void SettingForm_Load(object sender, EventArgs e)
        {
            string response = GLOBAL.HttpWebRequest("http://198.13.51.149/gytech/getfieldlist.php");

            JObject resobj        = JObject.Parse(response);
            JArray  arr_fieldlist = (JArray)resobj["FieldList"];

            Fields.Clear();

            foreach (JObject field in arr_fieldlist)
            {
                listBox1.Items.Add(field["FieldName"].ToString());
                Fields.Add(field);
            }

            UploadIntervals[0] = 300;
            UploadIntervals[1] = 600;
            UploadIntervals[2] = 900;
            UploadIntervals[3] = 1800;
            UploadIntervals[4] = 3600;
            UploadIntervals[5] = -1;
        }