TestLiveUpdate/WebAssembly/PageComponents/CounterBase.cs

using System.Diagnostics;
using Microsoft.AspNetCore.Components;

namespace WebAssembly.PageComponents;

public class CounterBase : ComponentBase
{
    public int CurrentCount { get; private set; }
    public bool Cancel { get; private set; }
    public Stopwatch Stopwatch { get; } = new();

    public async Task Start()
    {
        Stopwatch.Start();
        Cancel = false;
        while (!Cancel)
        {
            CurrentCount++;
            StateHasChanged();
            await Task.Delay(10);
        }
        Stopwatch.Stop();
    }

    public void Stop()
    {
        Cancel = true;
    }

    public void Reset()
    {
        Cancel = true;
        CurrentCount = 0;
        Stopwatch.Reset();
    }
}