Add null check for OnCollectionChanged

taooceros · taooceros · commit 8311b39ddc03 · 2021-01-21T18:35:24.000+08:00
diff --git a/Flow.Launcher/ViewModel/ResultsViewModel.cs b/Flow.Launcher/ViewModel/ResultsViewModel.cs
@@ -249,7 +249,7 @@ public class ResultCollection : List<ResultViewModel>, INotifyCollectionChanged
 
             protected void OnCollectionChanged(NotifyCollectionChangedEventArgs e)
             {
-                CollectionChanged(this, e);
+                CollectionChanged?.Invoke(this, e);
             }
 
             public void BulkAddAll(List<ResultViewModel> resultViews)

Original file line number	Diff line number	Diff line change
`@@ -249,7 +249,7 @@ public class ResultCollection : List<ResultViewModel>, INotifyCollectionChanged`
`249`	`249`
`250`	`250`	`protected void OnCollectionChanged(NotifyCollectionChangedEventArgs e)`
`251`	`251`	`{`
`252`		`- CollectionChanged(this, e);`
	`252`	`+ CollectionChanged?.Invoke(this, e);`
`253`	`253`	`}`
`254`	`254`
`255`	`255`	`public void BulkAddAll(List<ResultViewModel> resultViews)`