mapo-core/MP.Land/Pages/UserQr.razor.cs

using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.Configuration;
using MP.AppAuth.Models;
using MP.AppAuth.Services;
using MP.Land.Data;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace MP.Land.Pages
{
    public partial class UserQr : IDisposable
    {
        #region Public Methods

        public void Dispose()
        {
            AppMService.EA_SearchUpdated -= OnSeachUpdated;
            AppMService.EA_FilterUpdated -= OnFilterUpdated;
            ListRecords = null;
            GC.Collect();
        }

        #endregion Public Methods

        #region Protected Fields

        protected string CardMessage = "User Card";
        protected int totalCount = 0;

        #endregion Protected Fields

        #region Protected Properties

        [Inject]
        protected LMessageService AppMService { get; set; }

        protected string BaseUrlTab
        {
            get => $"{Configuration["ServerConf:BaseUrl"]}{Configuration["QrJumpPath"]}";
        }

        [Inject]
        protected AppAuthService DataService { get; set; }

        protected string Environment
        {
            get => Configuration["Environment"];
        }

        #endregion Protected Properties

        #region Protected Methods

        protected override async Task OnInitializedAsync()
        {
            AppMService.ShowSearch = true;
            AppMService.PageName = "User Card";
            AppMService.PageIcon = "fas fa-qrcode pe-2";
            await ReloadData();
            AppMService.EA_SearchUpdated += OnSeachUpdated;
            AppMService.EA_FilterUpdated += OnFilterUpdated;
        }

        protected async Task PagerReloadNum(int newNum)
        {
            ListRecords = null;
            numRecord = newNum;
            await ReloadData();
            isLoading = false;
        }

        protected async Task PagerReloadPage(int newNum)
        {
            ListRecords = null;
            currPage = newNum;
            await ReloadData();
            isLoading = false;
        }

        protected MarkupString traduci(string lemma)
        {
            MarkupString answ;
            string rawHtml = DataService.Traduci(lemma, "IT");
            answ = new MarkupString(rawHtml);
            return answ;
        }

        #endregion Protected Methods

        #region Private Fields

        private List<AnagraficaOperatori> ListRecords;

        private List<AnagraficaOperatori> SearchRecords;

        #endregion Private Fields

        #region Private Properties

        [Inject]
        private IConfiguration Configuration { get; set; }

        private int currPage
        {
            get
            {
                return AppMService.SelFilter.PageNum;
            }
            set
            {
                AppMService.SelFilter.PageNum = value;
            }
        }

        private string groupName
        {
            get
            {
                return AppMService.CodGruppo;
            }
        }

        private bool isLoading { get; set; } = false;

        private int numRecord
        {
            get
            {
                return AppMService.SelFilter.PageSize;
            }
            set
            {
                AppMService.SelFilter.PageSize = value;
            }
        }

        #endregion Private Properties

        #region Private Methods

        private async void OnFilterUpdated()
        {
            isLoading = true;
            await InvokeAsync(StateHasChanged);
            ListRecords = null;
            currPage = 1;
            await ReloadData();
        }

        private async void OnSeachUpdated()
        {
            isLoading = true;
            await Task.Delay(1);
            await InvokeAsync(StateHasChanged);
            ListRecords = null;
            currPage = 1;
            await ReloadData();
        }

        private async Task ReloadData()
        {
            isLoading = true;
            // importante altrimenti NON mostra update UI
            SearchRecords = await DataService.AnagOperByGroupList(groupName, AppMService.SearchVal);
            ListRecords = SearchRecords.Skip((currPage - 1) * numRecord).Take(numRecord).ToList();
            totalCount = SearchRecords.Count();
            isLoading = false;
            StateHasChanged();
        }

        #endregion Private Methods
    }
}