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();
}