I wrote a function that creates a permanent timer to execute a function. For example, it calls the desired function every minute. That function has an input parameter which is a number and I want to create it dynamically. For example, zero is passed in the first run and ten units are added to it in each subsequent run.
This is my class :

using Timer = System.Timers.Timer;

public class GetProductsEvent : IHostedService, IDisposable
{
private readonly int _seconds;

private readonly Timer _timer;
private readonly IServiceProvider _serviceProvider;

public GetProductsEvent(IServiceProvider serviceProvider, EventConfiguration eventConfig)
{
    _seconds = eventConfig.SendInvoiceTimer;
    
    _timer = new Timer(GetTimePeriod());
    _timer.Elapsed += Timer_Elapsed;

    _serviceProvider = serviceProvider;
}

private void Timer_Elapsed(object sender, ElapsedEventArgs e)
{
    // var wait = DoWork();
    // wait.Wait();
    DoWork(0);
}

private void DoWork(int startRow)
{
    try
    {
        using var scope = _serviceProvider.CreateScope();
        {
            IHostWorker worker =
                scope.ServiceProvider.GetRequiredService<IHostWorker>();
            
            worker.GetProductsInfo(startRow);
        }
    }
    catch (Exception)
    {
        // Logging
    }

    _timer.Interval = GetTimePeriod();
    _timer.Start();
}

private double GetTimePeriod()
{
    var runTime = DateTime.Now.AddSeconds(_seconds);
    return (runTime - DateTime.Now).TotalMilliseconds;
}

public void Dispose()
{
    // TODO release managed resources here

    _timer.Stop();
    _timer?.Dispose();
}

public async Task StartAsync(CancellationToken cancellationToken)
{
    _timer.AutoReset = false;
    _timer.Start();
}

public async Task StopAsync(CancellationToken cancellationToken)
{
    _timer.Stop();
}

}

The desired function is ‘GetProductsInfo’ and now I don’t know how to change its parameter value