mapo-core/MP.SPEC/Pages/Test.razor.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Components;
using System.Net.Http;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.AspNetCore.Components.Forms;
using Microsoft.AspNetCore.Components.Routing;
using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.Web.Virtualization;
using Microsoft.JSInterop;
using MP.SPEC;
using MP.SPEC.Shared;
using MP.SPEC.Components;
using MP.Data;
using Newtonsoft.Json;
using MP.SPEC.Data;

namespace MP.SPEC.Pages
{
    public partial class Test : IDisposable
    {
        [Inject]
        protected MpDataService MMDataService { get; set; } = null!;

        protected string messaggio = "0";
        protected DateTime lastRec = DateTime.Now.AddMinutes(-1);
        private void BroadCastMsg_EA_NewMessage(object? sender, EventArgs e)
        {
            DateTime adesso = DateTime.Now;
            if (lastRec.AddSeconds(2) < adesso)
            {
                PubSubEventArgs currArgs = (PubSubEventArgs)e;
                if (!string.IsNullOrEmpty(currArgs.newMessage))
                {
                    lastRec = adesso;
                    try
                    {
                        var result = JsonConvert.DeserializeObject<string>(currArgs.newMessage);
                        if(result != null)
                        {
                            messaggio = result; 
                        }
                    }
                    catch
                    { }
                    InvokeAsync(() =>
                    {
                        StateHasChanged();
                    });
                }
            }
        }
        public void Dispose()
        {
            MMDataService.BroadastMsgPipe.EA_NewMessage += BroadCastMsg_EA_NewMessage;
        }

        protected override async Task OnInitializedAsync()
        {
            await Task.Delay(1);
            MMDataService.BroadastMsgPipe.EA_NewMessage += BroadCastMsg_EA_NewMessage;
        }

    }
}