public void Flush(ObservableCollection <Customer> list, Action <Exception> completed)
{
try
{
Core_DAL.Flush(list);
completed(null);
}
catch (Exception e)
{
completed(e);
}
}
public void GetCustomers(Action <ObservableCollection <Customer>, Exception> completed)
{
try
{
ObservableCollection <Customer> customers = Core_DAL.FetchCustomers();
completed(customers, null);
}
catch (Exception e)
{
completed(null, e);
}
}
