mapo-core/MP.Land/Components/CmpTop.razor.cs

using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Authorization;
using System;
using System.Threading.Tasks;

namespace MP.Land.Components
{
    public partial class CmpTop
    {
        #region Public Methods

        public void Dispose()
        {
            AppMessages.EA_PageUpdated -= OnPageUpdate;
            GC.Collect();
        }

        public void OnPageUpdate()
        {
            PageName = AppMessages.PageName;
            PageIcon = AppMessages.PageIcon;
            InvokeAsync(() =>
            {
                StateHasChanged();
            });
        }

        #endregion Public Methods

        #region Protected Methods

        protected override void OnInitialized()
        {
            AppMessages.EA_PageUpdated += OnPageUpdate;
        }

        protected override async Task OnInitializedAsync()
        {
            await forceReload();
        }

        #endregion Protected Methods

        #region Private Fields

        private string userName = "";

        #endregion Private Fields

        #region Private Properties

        private string PageIcon { get; set; }

        private string PageName { get; set; }

        [CascadingParameter(Name = "ShowSearch")]
        private bool ShowSearch { get; set; }

        #endregion Private Properties

        #region Private Methods

        private async Task forceReload()
        {
            userName = "N.A.";
            await Task.Delay(1); var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
            var user = authState.User;
            if (user.Identity != null && user.Identity.IsAuthenticated)
            {
                userName = $"{user.Identity.Name}";
            }
            else
            {
                userName = "N.A.";
            }
        }

        #endregion Private Methods
    }
}