How to get the dropped item group in Xamarin.Forms ListView (SfListView)

You can get the drop item group in Xamarin.Forms SfListView using DisplayItems.

You can also refer the following article.

https://www.syncfusion.com/kb/11436/how-to-get-the-dropped-item-group-in-xamarin-forms-listview-sflistview

C#

Get the group details after dragging in ItemDragging event when the action is Drop. Get the drop item index using NewIndex from ItemDraggingEventArgs.

namespace ListViewXamarin
{
    public class Behavior : Behavior<ContentPage>
    {
        SfListView ListView;
 
        protected override void OnAttachedTo(ContentPage bindable)
        {
            ListView = bindable.FindByName<SfListView>("listView");
            ListView.ItemDragging += ListView_ItemDragging;
 
            base.OnAttachedTo(bindable);
        }
 
        private void ListView_ItemDragging(object sender, ItemDraggingEventArgs e)
        {
            if (e.Action == DragAction.Drop)
            {
                int dropIndex = e.NewIndex;
                var dropItem = ListView.DataSource.DisplayItems[dropIndex];
                var dropedGroup = GetGroup(dropItem);
 
                App.Current.MainPage.DisplayAlert("Dropped group", "" + dropedGroup.Key, "Ok");
            }
        }
 
        public GroupResult GetGroup(object itemData)
        {
            GroupResult itemGroup = null;

            foreach (var item in this.ListView.DataSource.DisplayItems)
            {
                if(itemData is GroupResult)
                {
                    if (args.OldIndex > args.NewIndex && item == itemData) break;
                    if (item is GroupResult) itemGroup = item as GroupResult;
                    if (args.OldIndex < args.NewIndex && item == itemData) break;
                }
                else
                {
                    if (item == itemData) break;
                    if (item is GroupResult) itemGroup = item as GroupResult;
                }
            }
            return itemGroup;
        }
    }
}

Output