IProgress

• IProgress

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using System;
using System.Threading.Tasks;

public class HelloWorld
{
    public static void Main(string[] args)
    {
       Teste.Load(new ConsoleProgress()).GetAwaiter().GetResult();
    }
}


public static class Teste
{
    public static async Task Load(IProgress<int> progress = null)
    {
        var steps = 40;
        for (int i = 0; i < steps; i++)
        {
            await Task.Delay(1000);
            progress?.Report((i + 1) * 100 / steps);
        }
    }
}


public class ConsoleProgress : IProgress<int>
{
    public void Report(int value)
    {
        Console.WriteLine(value);
    }
}