egwcorelib/EgwCoreLib.BlazorTest/Pages/TestLoading.razor.cs

namespace EgwCoreLib.BlazorTest.Pages
{
    public partial class TestLoading
    {
        #region Protected Properties

        protected double expTime { get; set; } = 6;
        protected int numSteps { get; set; } = 4;

        #endregion Protected Properties

        #region Protected Methods

        protected async Task StartLongTimer()
        {
            double stdWait = expTime / numSteps;
            int nextWait = 1000;
            int stepVal = maxVal / numSteps;
            // imposto i valori x progress..
            maxVal = 100;
            expTimeMSec = (int)(stdWait * 1000);
            //nextVal = stepVal;
            //currVal = 0;
            for (int currStep = 1; currStep <= numSteps; currStep++)
            {
                // aggiorno valori
                currVal = (currStep - 1) * stepVal;
                nextVal = currStep * stepVal;
                // se max mi fermo...
                if (nextVal > maxVal)
                {
                    nextVal = maxVal;
                }
                await InvokeAsync(StateHasChanged);
                // simulo ritardo importante (da 2 a 3 volte
                nextWait = (int)(rnd.Next(2000, 3000) * stdWait);
                // attendo step successivi...
                await Task.Delay(nextWait);
            }
            await Task.Delay(1);
            currVal = maxVal;
            await InvokeAsync(StateHasChanged);
        }

        #endregion Protected Methods

        #region Private Fields

        private int currVal = 100;
        private int expTimeMSec = 10000;
        private int maxVal = 100;
        private int nextVal = 100;
        private Random rnd = new Random();
        private string titleMsg = "SIM Progress";

        #endregion Private Fields
    }
}