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Toolkit.Foundation/Observable.cs

@@ -86,21 +86,21 @@ public partial class Observable<TValue>(IServiceProvider provider,
     IMediator mediator, 
     IPublisher publisher, 
     ISubscription subscriber, 
-    IDisposer disposer) : Observable(provider, factory, mediator, publisher, subscriber, disposer)
-    where TValue : notnull
+    IDisposer disposer,
+    TValue? value = default) : Observable(provider, factory, mediator, publisher, subscriber, disposer)
 {
     [ObservableProperty]
-    private TValue? value;
+    private TValue? value = value;
 }
 
+
 public partial class Observable<TKey, TValue>(IServiceProvider provider,
     IServiceFactory factory,
     IMediator mediator,
     IPublisher publisher,
     ISubscription subscriber,
     IDisposer disposer,
-    TValue? value = null) : Observable(provider, factory, mediator, publisher, subscriber, disposer)
-    where TValue : class
+    TValue? value = default) : Observable(provider, factory, mediator, publisher, subscriber, disposer)
 {
     [ObservableProperty]
     private TKey? key;