maui-collectionview

Set ItemsLayout to a GridItemsLayout with Orientation and Span properties, for example Span="2" for two columns. Bind ItemsSource to an ObservableCollection and define item appearance with a DataTemplate using x:DataType for compiled bindings.

Wrap the CollectionView in a RefreshView and bind its IsRefreshing property and Command to your ViewModel. Set IsRefreshing back to false in the ViewModel when the refresh operation completes.

CollectionView replaces ListView and should be used for all scrollable data lists. It offers better performance, flexible list and grid layouts, and does not require ViewCell, using any View or Layout as the item template root.

The ItemsSource must be an ObservableCollection<T>, not a List<T>, so the UI receives change notifications on add and remove. Collection updates must also run on the UI thread via MainThread.BeginInvokeOnMainThread.

RemainingItemsThreshold-based loading requires a virtualizing layout such as LinearItemsLayout or GridItemsLayout. Using a StackLayout with BindableLayout has no virtualization, which causes the threshold event to fire continuously.

Avoid CollectionView for static layouts with a fixed number of items, where Grid or StackLayout is simpler. Also use Microsoft.Maui.Controls.Maps for map pin lists and standard form controls for table-based data entry.