From 9092b764ec0daab01cb631e7a7788254f543148e Mon Sep 17 00:00:00 2001
From: Robert Haken <haken@havit.cz>
Date: Thu, 12 Dec 2024 13:23:57 +0100
Subject: [PATCH] [Blazor] Lazy loading - Complete example - Prevent repeated
 loads (#34243)

---
 aspnetcore/blazor/webassembly-lazy-load-assemblies.md | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/aspnetcore/blazor/webassembly-lazy-load-assemblies.md b/aspnetcore/blazor/webassembly-lazy-load-assemblies.md
index a89174db8f..a0054cb667 100644
--- a/aspnetcore/blazor/webassembly-lazy-load-assemblies.md
+++ b/aspnetcore/blazor/webassembly-lazy-load-assemblies.md
@@ -592,16 +592,18 @@ The assembly is assigned to <xref:Microsoft.AspNetCore.Components.Routing.Router
 
 @code {
     private List<Assembly> lazyLoadedAssemblies = new();
+    private bool grantImaharaRobotControlsAssemblyLoaded;
 
     private async Task OnNavigateAsync(NavigationContext args)
     {
         try
         {
-            if (args.Path == "robot")
+            if ((args.Path == "robot") && !grantImaharaRobotControlsAssemblyLoaded)
             {
                 var assemblies = await AssemblyLoader.LoadAssembliesAsync(
                     new[] { "GrantImaharaRobotControls.{FILE EXTENSION}" });
                 lazyLoadedAssemblies.AddRange(assemblies);
+                grantImaharaRobotControlsAssemblyLoaded = true;
             }
         }
         catch (Exception ex)
@@ -644,16 +646,18 @@ The assembly is assigned to <xref:Microsoft.AspNetCore.Components.Routing.Router
 
 @code {
     private List<Assembly> lazyLoadedAssemblies = new List<Assembly>();
+    private bool grantImaharaRobotControlsAssemblyLoaded;
 
     private async Task OnNavigateAsync(NavigationContext args)
     {
         try
         {
-            if (args.Path == "robot")
+            if ((args.Path == "robot") && !grantImaharaRobotControlsAssemblyLoaded)
             {
                 var assemblies = await AssemblyLoader.LoadAssembliesAsync(
                     new[] { "GrantImaharaRobotControls.{FILE EXTENSION}" });
                 lazyLoadedAssemblies.AddRange(assemblies);
+                grantImaharaRobotControlsAssemblyLoaded = true;
             }
         }
         catch (Exception ex)