public partial class FrmSettings : Form
    {
        public FrmSettings()
        {
            InitializeComponent();
        }

private void FrmSettings_Load(object sender, EventArgs e)
        {
            this.firefoxDialog1.ImageList = this.imageList1;

this.firefoxDialog1.AddPage("参数设置", new PageSetting());
            this.firefoxDialog1.AddPage("程序控制", new PageControl());
            this.firefoxDialog1.Init();
        }
    }

        public override void OnInit()
        {
            SystemConfig.Default.Load();

#region 采集间隔时间
            string defaultInterval = "00:00:30";
            string intervalString = SystemConfig.Default.CaptureInterval;
            if (string.IsNullOrEmpty(intervalString))
            {
                intervalString = defaultInterval;
            }

string[] timeArray = intervalString.Split(':');
            this.txtHour.Value = Convert.ToInt32(timeArray[0]);
            this.txtMinute.Value = Convert.ToInt32(timeArray[1]);
            this.txtSecond.Value = Convert.ToInt32(timeArray[2]); 
            #endregion

if (!string.IsNullOrEmpty(SystemConfig.Default.ImageFormat))
            {
                this.ddlImageFormat.Text = SystemConfig.Default.ImageFormat;
            }
            else
            {
                this.ddlImageFormat.SelectedIndex = 0;
            }

this.txtExtension.Text = SystemConfig.Default.ImageFileExtension;
            this.txtSavePath.Text = SystemConfig.Default.PictureSavePath;
        }

public override void OnApply()
        {
            try
            {
                string timeSpan = string.Format("{0:D2}:{1:D2}:{2:D2}", 
                    Convert.ToInt32(this.txtHour.Value), Convert.ToInt32(this.txtMinute.Value), Convert.ToInt32(this.txtSecond.Value));
                SystemConfig.Default.CaptureInterval = timeSpan;
                SystemConfig.Default.ImageFileExtension = this.txtExtension.Text.Trim('.');
                SystemConfig.Default.ImageFormat = this.ddlImageFormat.Text;
                SystemConfig.Default.PictureSavePath = this.txtSavePath.Text;
                SystemConfig.Default.Save();
            }
            catch (Exception ex)
            {
                LogHelper.Error(ex);
                MessageUtil.ShowError(ex.Message);
            }
        }