src/NSeguin.Dev.Web/Components/Shared/AutoFocus.razor

@@ -1,14 +1,21 @@
 @inject IJSRuntime JSRuntime
+
 @code {
+
     [Parameter]
-    public Func<ElementReference> GetControl { get; set; }
+    public Func<ElementReference>? GetControl { get; set; }
 
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (GetControl is null)
+        {
             throw new ArgumentNullException(nameof(GetControl));
+        }
 
         if (firstRender)
+        {
             await JSRuntime.InvokeVoidAsync("App.scrollIntoView", GetControl(), true);
+        }
     }
+
 }

src/NSeguin.Dev.Web/wwwroot/js/app.js

@@ -1,9 +1,15 @@
-var App = App || {};
+const App = App || {};
 
 App.setFocus = function (element) {
     element.focus();
 }
 
 App.scrollIntoView = function (element, args) {
+    if (element === undefined) {
+        console.error('Element is undefined');
+    } else if (element === null) {
+        console.error('Element is null');
+    }
+
     element.scrollIntoView(args);
 }