Fixes System.Inavlid.Cast Exception in iOS.CollectionViewRenderer.

For Details see issue roubachof#47 System.InvalidCastExceptionin CollectionViewRenderer
meierhoeferjannis · Dec 16, 2021 · ae65c85 · ae65c85
1 parent f5869a6
commit ae65c85
Showing 1 changed file with 15 additions and 1 deletion.
diff --git a/Sharpnado.CollectionView.iOS/Renderers/CollectionViewRenderer.cs b/Sharpnado.CollectionView.iOS/Renderers/CollectionViewRenderer.cs
@@ -406,7 +406,21 @@ private void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs
                 return;
             }
 
-            if (Control.NumberOfItemsInSection(0) == ((IList)_itemsSource).Count)
+            var count = 0;
+            if (_itemsSource is IList list)
+            {
+                count = list.Count;
+            }
+            else
+            {
+                var enumerator = _itemsSource.GetEnumerator();
+                while (enumerator.MoveNext())
+                {
+                    count += 1;
+                }
+            }
+
+            if (Control.NumberOfItemsInSection(0) == count)
             {
                 return;
             }