Create new layout for pages with authorization checks

Hcs.WebApp/Components/Layout/AuthorizedLayout.razor

@@ -0,0 +1,22 @@
+@inherits LayoutComponentBase
+
+@using Microsoft.AspNetCore.Authorization
+
+@layout MainLayout
+
+<AuthorizeView Roles="@Roles">
+    <Authorized>
+        <CascadingValue Value="this">
+            @Body
+        </CascadingValue>
+    </Authorized>
+    <NotAuthorized>
+        <RadzenAlert AllowClose="false" AlertStyle="AlertStyle.Danger" Variant="Variant.Flat" Shade="Shade.Lighter">
+            У вас нет прав для доступа к этой странице
+        </RadzenAlert>
+    </NotAuthorized>
+</AuthorizeView>
+
+@code {
+    public string Roles { get; set; }
+}

Hcs.WebApp/Components/Pages/Test/Export.razor

@@ -9,17 +9,18 @@
 @using Hcs.WebApp.Utils
 @using Microsoft.AspNetCore.Authorization
 
-@implements IDisposable
-
 @attribute [Authorize]
 
+@layout AuthorizedLayout
+
+@implements IDisposable
+
 @inject NavigationManager NavigationManager
 @inject IConfiguration Configuration
 @inject IClientProvider ClientProvider
 
 <PageTitle>Тестирование экспорта</PageTitle>
 
-<AuthorizeView Roles="@AppRole.ADMINISTRATOR_TYPE">
 <RadzenSplitter Orientation="Orientation.Vertical" Style="height: 100%; border: 1px solid rgba(0,0,0,.08);">
     <RadzenSplitterPane Size="200px">
         <div style="height: 100%;overflow: auto;">
@@ -51,7 +52,6 @@
         <EventConsole @ref=@console />
     </RadzenSplitterPane>
 </RadzenSplitter>
-</AuthorizeView>
 
 @code {
     EventConsole console = default!;
@@ -66,10 +66,15 @@
     FileMessageCapturer messageCapturer;
     bool catchMessageBody;
 
+    [CascadingParameter]
+    public AuthorizedLayout Layout { get; set; }
+
     protected override void OnInitialized()
     {
         base.OnInitialized();
 
+        Layout.Roles = AppRole.ADMINISTRATOR_TYPE;
+
         logger.OnWriteLine += OnLog;
 
         messageCapturer = new FileMessageCapturer("test/export", logger);

Hcs.WebApp/Components/_Imports.razor

@@ -2,6 +2,7 @@
 @using System.Net.Http.Json
 @using Hcs.WebApp
 @using Hcs.WebApp.Components
+@using Hcs.WebApp.Components.Layout
 @using Hcs.WebApp.Components.Shared
 @using Hcs.WebApp.Data
 @using Microsoft.AspNetCore.Components.Authorization