Fix NRE (#657)

reactiveui · May 10, 2024 · 6bd466f · 6bd466f
1 parent d0c59bf
commit 6bd466f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/ReactiveUI.Validation/Extensions/ValidatableViewModelExtensions.cs b/src/ReactiveUI.Validation/Extensions/ValidatableViewModelExtensions.cs
@@ -533,7 +533,7 @@ public static IObservable<bool> IsValid<TViewModel>(this TViewModel viewModel)
         viewModel.ValidationContext.Add(validation);
         return new ValidationHelper(validation, Disposable.Create(() =>
         {
-            viewModel.ValidationContext.Remove(validation);
+            viewModel.ValidationContext?.Remove(validation);
             validation.Dispose();
         }));
     }