private void Window_Loaded(object sender, RoutedEventArgs e) { var desktopWorkingArea = System.Windows.SystemParameters.WorkArea; this.Left = desktopWorkingArea.Right - this.Width; this.Top = desktopWorkingArea.Bottom - this.Height; buttonProfile.Content = mitem._FNAME; var now = DateTime.Today.ToString("MM/dd/yy"); var check = utime.Checker(mitem._EMPID); if (check == null) { btn_time_out.IsEnabled = false; btn_time_in.IsEnabled = true; } else if (check.TIME_OUT == "Waiting to Timeout") { btn_time_in.IsEnabled = false; btn_time_out.IsEnabled = true; } else { btn_time_out.IsEnabled = false; btn_time_in.IsEnabled = true; } }