private void UserControl_Loaded(object sender, RoutedEventArgs e) { if (objGeneralDba == null) { objGeneralDba = new GeneralDba(); } machines = objGeneralDba.GetAllMachines(); machines.Add(filterMachineLabel); filterMachine.ItemsSource = machines; filterMachine.SelectedValue = filterMachineLabel; List <string> notifCategories = Enum.GetNames(typeof(NotificationData.errorCategory)).ToList(); notifCategories.Add(filterCategoryLabel); filterCategory.ItemsSource = notifCategories; filterCategory.SelectedValue = filterCategoryLabel; filterStartDate.Value = CommonMethods.AbsoluteStart(DateTime.Now); filterEndDate.Value = CommonMethods.AbsoluteEnd(DateTime.Now); FilterGrid(); }