Create IServersEFCoreRepository interface, register as service and use dependency injection to replace the static ServersRepository.

ServerManagement/Components/Controls/ServerComponent.razor

@@ -2,6 +2,7 @@
 
 @inject NavigationManager NavigationManager
 @inject EindhovenOnlineServersStore EindhovenOnlineServersStore
+@inject IServersEFCoreRepository ServersEFCoreRepository
 
 @if (Server != null)
 {
@@ -69,7 +70,7 @@
   {
     if (serverId > 0)
     {
-      ServersRepository.DeleteServer(serverId);
+      ServersEFCoreRepository.DeleteServer(serverId);
       NavigationManager.Refresh(forceReload: true);
     }
   }
@@ -113,6 +114,8 @@
           }
         }
         this.Server.IsOnline = status;
+
+        ServersEFCoreRepository.UpdateServer(this.Server.Id, Server);
       }
     }
   }

ServerManagement/Components/Controls/ServerListComponent.razor

@@ -1,5 +1,7 @@
 @using System.Threading;
 
+@inject IServersEFCoreRepository ServersEFCoreRepository
+
 <table class="table table-striped">
   <RepeaterComponent Items="this.servers">
     <Header>
@@ -61,11 +63,11 @@
   {
     if (string.IsNullOrWhiteSpace(this.SearchFilter))
     {
-      servers = ServersRepository.GetServersByCity(CityName ?? "Eindhoven");
+      servers = ServersEFCoreRepository.GetServersByCity(CityName ?? "Eindhoven");
     }
     else
     {
-      servers = ServersRepository.SearchServers(SearchFilter);
+      servers = ServersEFCoreRepository.SearchServers(SearchFilter);
     }
   }
 
@@ -77,11 +79,11 @@
     {
       if (string.IsNullOrWhiteSpace(this.SearchFilter))
       {
-        servers = ServersRepository.GetServersByCity(CityName ?? "Eindhoven");
+        servers = ServersEFCoreRepository.GetServersByCity(CityName ?? "Eindhoven");
       }
       else
       {
-        servers = ServersRepository.SearchServers(SearchFilter);
+        servers = ServersEFCoreRepository.SearchServers(SearchFilter);
       }
       // Render the component again by letting it know the state changed.
       StateHasChanged();

ServerManagement/Components/Pages/AddEditServer.razor

@@ -2,6 +2,7 @@
 
 @inject NavigationManager NavigationManager
 @inject IJSRuntime JSRuntime
+@inject IServersEFCoreRepository ServersEFCoreRepository
 
 <NavigationLock
   OnBeforeInternalNavigation="OnBeforeInternalNavigation"
@@ -79,7 +80,7 @@ else
   {
     if (this.Id.HasValue)
     {
-      server ??= ServersRepository.GetServerById(this.Id.Value);
+      server ??= ServersEFCoreRepository.GetServerById(this.Id.Value);
     }
     else
     {
@@ -98,11 +99,11 @@ else
     {
       if (this.Id.HasValue)
       {
-        ServersRepository.UpdateServer(server.Id, server);
+        ServersEFCoreRepository.UpdateServer(server.Id, server);
       }
       else
       {
-        ServersRepository.AddServer(server);
+        ServersEFCoreRepository.AddServer(server);
       }
     }
 

ServerManagement/Components/Pages/QuickGridDemo.razor

@@ -2,6 +2,7 @@
 @using Microsoft.AspNetCore.Components.QuickGrid
 
 @inject NavigationManager NavigationManager
+@inject IServersEFCoreRepository ServersEFCoreRepository
 
 <h3>QuickGrid demo</h3>
 <br/>
@@ -63,13 +64,21 @@
 }
 
 @code {
-  private List<Server>? servers = ServersRepository.GetServers();
+  private List<Server>? servers;
   private PaginationState paginationState = new PaginationState { ItemsPerPage = 5 };
+
+  protected override void OnAfterRender(bool firstRender)
+  {
+    if (firstRender)
+    {
+      servers = ServersEFCoreRepository.GetServers();
+    }
+  }
   private void DeleteServer(int serverId)
   {
     if (serverId > 0)
     {
-      ServersRepository.DeleteServer(serverId);
+      ServersEFCoreRepository.DeleteServer(serverId);
       NavigationManager.Refresh(forceReload: true);
     }
   }

ServerManagement/Components/Pages/Servers.razor

@@ -5,6 +5,7 @@
 
 @inject NavigationManager NavigationManager
 @inject EindhovenOnlineServersStore EindhovenOnlineServersStore
+@inject IServersEFCoreRepository ServersEFCoreRepository
 
 <h3>Servers</h3>
 <br/>
@@ -64,7 +65,7 @@
         StateHasChanged();
       }
 
-      var serversEindhoven = ServersRepository.GetServersByCity("Eindhoven");
+      var serversEindhoven = ServersEFCoreRepository.GetServersByCity("Eindhoven");
       if (serversEindhoven != null)
       {
         EindhovenOnlineServersStore.SetNumberServersOnline(serversEindhoven.Count(s => s.IsOnline));

ServerManagement/Components/Pages/Wizards/SetStatus.razor

@@ -4,6 +4,7 @@
 
 @inject NavigationManager NavigationManager
 @inject ContainerStorage containerStorage
+@inject IServersEFCoreRepository ServersEFCoreRepository
 
 <h3>Server Status</h3>
 <br/>
@@ -48,7 +49,7 @@
     if (server != null)
     {
       containerStorage.SetServer(null);
-      ServersRepository.AddServer(server);
+      ServersEFCoreRepository.AddServer(server);
       NavigationManager.NavigateTo($"/servers/back_from/{server?.City}");
     }
   }

ServerManagement/Models/IServersEFCoreRepository.cs

@@ -0,0 +1,13 @@
+namespace ServerManagement.Models
+{
+    public interface IServersEFCoreRepository
+    {
+        void AddServer(Server server);
+        void DeleteServer(int serverId);
+        Server? GetServerById(int id);
+        List<Server> GetServers();
+        List<Server> GetServersByCity(string cityName);
+        List<Server> SearchServers(string serverFilter);
+        void UpdateServer(int serverId, Server server);
+    }
+}

ServerManagement/Models/ServersEFCoreRepository.cs

@@ -1,10 +1,9 @@
 using Microsoft.EntityFrameworkCore;
 using ServerManagement.Data;
-using ServerManagement.Models;
 
-namespace ServerManagement;
+namespace ServerManagement.Models;
 
-public class ServersEFCoreRepository
+public class ServersEFCoreRepository : IServersEFCoreRepository
 {
   private readonly IDbContextFactory<ServerManagementContext> contextFactory;
   public ServersEFCoreRepository(IDbContextFactory<ServerManagementContext> contextFactory) 

ServerManagement/Models/ServersRepository.cs

@@ -1,5 +1,6 @@
 namespace ServerManagement.Models
 {
+    // No longer used, since ServersEFCoreRepository is now in use.
   public static class ServersRepository
     {
         private static List<Server> servers = new List<Server>()

ServerManagement/Program.cs

@@ -1,6 +1,7 @@
 using Microsoft.EntityFrameworkCore;
 using ServerManagement.Components;
 using ServerManagement.Data;
+using ServerManagement.Models;
 using ServerManagement.StateStore;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -33,6 +34,11 @@ builder.Services.AddScoped<ContainerStorage>();
 
 builder.Services.AddScoped<EindhovenOnlineServersStore>();
 
+// Transient is used here, the database is already globally accessible,
+// so this service does not need to live longer than necessary, just when needed.
+// First the interface is registered, then its concrete implementation.
+builder.Services.AddTransient<IServersEFCoreRepository, ServersEFCoreRepository>();
+
 var app = builder.Build();
 
 // Configure the HTTP request pipeline.