Currently I am using MudBlazor to learn the Blazor language. I used MudAppBar and MudNavMenu to create the menu.
<MudThemeProvider /><MudPopoverProvider /><MudDialogProvider /><MudSnackbarProvider /><MudLayout><MudAppBar Color="Color.Primary" Fixed="true"><MudIconButton Icon="@Icons.Material.Filled.Menu" Color="Color.Inherit" Edge="Edge.Start" OnClick="DrawerToggle" /> @appBarText</MudAppBar><MudDrawer @bind-Open="@_drawerOpen" Anchor="Anchor.Left"><MudDrawerContainer><MudNavMenu Bordered="true"> <MudNavLink Href="" Match="NavLinkMatch.All" >Home</MudNavLink><MudNavLink Href="/counter" >Counter</MudNavLink><MudNavLink Href="fetchdata">FetchData</MudNavLink></MudNavMenu></MudDrawerContainer></MudDrawer><MudMainContent><MudContainer MaxWidth="MaxWidth.ExtraLarge"> @Body</MudContainer></MudMainContent></MudLayout>@code { bool _drawerOpen = true; private string appBarText = "Default AppBar Text"; private void UpdateAppBarText(string text) { appBarText = text; } private void DrawerToggle() { _drawerOpen = !_drawerOpen; }}Everything was going well until I clicked on "MudNavLink" and updated the "appBarText" and the border of "MudNavMenu" was no longer visible.
@inherits LayoutComponentBase@inject NavigationManager NavManager<MudThemingProvider /><MudPopoverProvider /><MudDialogProvider /><MudSnackbarProvider /><MudLayout><MudAppBar Color="Color.Primary" Fixed="true"><MudIconButton Icon="@Icons.Material.Filled.Menu" Color="Color.Inherit" Edge="Edge.Start" OnClick="DrawerToggle" /> @appBarText</MudAppBar><MudDrawer @bind-Open="@_drawerOpen" Anchor="Anchor.Left"><MudDrawerContainer><MudNavMenu Bordered="true"><MudNavLink OnClick="@((e) => OnLinkChanged("Home", "/"))" Match="NavLinkMatch.All">Home</MudNavLink><MudNavLink OnClick="@((e) => OnLinkChanged("Counter", "counter"))">Counter</MudNavLink><MudNavLink OnClick="@((e) => OnLinkChanged("FetchData", "fetchdata"))">FetchData</MudNavLink></MudNavMenu></MudDrawerContainer></MudDrawer><MudMainContent><MudContainer MaxWidth="MaxWidth.ExtraLarge"> @Body</MudContainer></MudMainContent></MudLayout>@code { bool _drawerOpen = true; private string appBarText = "Default AppBar Text"; private Task OnLinkChanged(string title, string url) { appBarText = title; NavManager.NavigateTo(url); return Task.CompletedTask; } private void DrawerToggle() { _drawerOpen = !_drawerOpen; }}Can anyone help me with a solution so that the border color of "MudNavMenu" appears again like the first image. Thanks a lot.

