BackgroundWorker example - aspnetboilerplate

Question

Could you please provide an example how to use background worker.
I have created Background worker follow the instruction provided in documentation for asp.net boilerplate. Inherit my class from
public class ContactValidationBackgroundWorker : BackgroundWorkerBase, ITransientDependency
Override Start method and put into non-blocking Task.Run(MyMethod). Then I add wait instruction into Overrided method WaitToStop, add like myTask.Wait();
This method starts , but it block performing main process of work.
I'm using Asp.net(boilerplate) core + Angular (SPA)
I added it into Application Services layer.

Answer 1

public class MakeInactiveUsersPassiveWorker : PeriodicBackgroundWorkerBase, ISingletonDependency
{
private readonly IRepository<User, long> _userRepository;
public MakeInactiveUsersPassiveWorker(AbpTimer timer, IRepository<User, long> userRepository)
: base(timer)
{
_userRepository = userRepository;
Timer.Period = 5000; //5 seconds (good for tests, but normally will be more)
}
[UnitOfWork]
protected override void DoWork()
{
using (CurrentUnitOfWork.DisableFilter(AbpDataFilters.MayHaveTenant))
{
var oneMonthAgo = Clock.Now.Subtract(TimeSpan.FromDays(30));
var inactiveUsers = _userRepository.GetAllList(u =>
u.IsActive &&
((u.LastLoginTime < oneMonthAgo && u.LastLoginTime != null) || (u.CreationTime < oneMonthAgo && u.LastLoginTime == null))
);
foreach (var inactiveUser in inactiveUsers)
{
inactiveUser.IsActive = false;
Logger.Info(inactiveUser + " made passive since he/she did not login in last 30 days.");
}
CurrentUnitOfWork.SaveChanges();
}
}
}
Read => https://aspnetboilerplate.com/Pages/Documents/Background-Jobs-And-Workers

Answer 2

public partial class MainWindow : Window
{
//defining the backgroundworker
private BackgroundWorker bgworker = new BackgroundWorker();
public MainWindow()
{
InitializeComponent();
initializeBackgroundWorker();
}
private void initializeBackgroundWorker()
{
bgworker.DoWork += MyBackgroundWorker_DoWork;
}
private void MyBackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
//method you want to execute in the backgroundWorker
MyMethod();
}
private void Mouse_Enter(object sender, MouseEventArgs e)
{
//call the backgroundWorker and execute it
//This will execute the method simultaneouly with other methods
//without blocking the UI
bgworker.RunWorkerAsync();
}
private void MyMethod()
{
//your method's code
}
}
The above code shows how to define, initialize and execute a backgroundWorker in a WPF or winform application using C#.
Refer to the inline comments in the code to understand what each part of code does.