mapo-core/MP.INVE/Components/CodeScan.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.INVE;
using MP.INVE.Shared;
using MP.INVE.Components;
using MP.INVE.Data;
using StackExchange.Redis;
using NLog.Targets;

namespace MP.INVE.Components
{
    public partial class CodeScan
    {
        // FIXME TODO creare evento x riportare scansione
        [Parameter]
        public EventCallback<string> lastRawScan { get; set; }


        private ElementReference target;
        private ElementReference target2;


        protected string _lastScan = "";
        protected string css = "";
        protected string LastScan
        {
            get => _lastScan;
            set
            {
                _lastScan = value.Trim();
                if (value != "")
                {
                    saveSel(LastScan);
                }
                target2.FocusAsync();
                css = "disabilita";
            }
        }


        protected override async Task OnAfterRenderAsync(bool firstRender)
        {
            if (firstRender)
            {
                await target.FocusAsync();
            }
        }


        private void saveSel(string scanToSend)
        {
            if (scanToSend != "")
            {
                Task.FromResult(lastRawScan.InvokeAsync(scanToSend));
            }
            LastScan = "";
        }

        private async void newScan()
        {
            css = "";
            await target.FocusAsync();
        }
    }

}