Updated the README.md file

README.md

@@ -1,2 +1,61 @@
 # show-reordered-index-listview-xamarin
 How to show the reordered sorted index in   Xamarin.Forms ListView (SfListView) 
+
+## Sample
+
+```xaml
+<ContentPage.Resources>
+    <ResourceDictionary>
+        <local:IndexConverter x:Key="indexConverter"/>
+    </ResourceDictionary>
+</ContentPage.Resources>
+
+<syncfusion:SfListView x:Name="ToDoListView" ItemSize="60" IsStickyHeader="True" IsScrollBarVisible="False"
+  ItemsSource="{Binding ToDoList}" DragStartMode="OnHold,OnDragIndicator" SelectionMode="None">
+
+    <syncfusion:SfListView.DragDropController>
+        <syncfusion:DragDropController UpdateSource="True"/>
+    </syncfusion:SfListView.DragDropController>
+
+    <syncfusion:SfListView.ItemTemplate>
+        <DataTemplate>
+            <code>
+            . . .
+            . . .
+            <code>
+        </DataTemplate>
+    </syncfusion:SfListView.ItemTemplate>
+</syncfusion:SfListView>
+
+C#:
+ListView.ItemDragging += ListView_ItemDragging;
+
+private void ListView_ItemDragging(object sender, ItemDraggingEventArgs e)
+{
+    if (e.Action == DragAction.Drop)
+    {
+        if (e.NewIndex < e.OldIndex)
+        {
+            Device.BeginInvokeOnMainThread(() => ListView.RefreshListViewItem(-1, -1, true));
+        };
+    }
+}
+
+Converter:
+public class IndexConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        if (value == null) return 0;
+
+        var item = value as ToDoItem;
+        var listView = parameter as SfListView;
+        return listView.DataSource.DisplayItems.IndexOf(item);
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}
+```