Propagate BindingContext recursively on RecyclerViewItem. (#2928)

* Propgate BindingContext recursively on RecyclerViewItem.

propagate BindingContext to chlidren and descendant recursively
for applying binding on DataTemplate.

diff --git a/src/Tizen.NUI.Components/Controls/RecyclerView/Item/RecyclerViewItem.Internal.cs b/src/Tizen.NUI.Components/Controls/RecyclerView/Item/RecyclerViewItem.Internal.cs
index e900020..bc0e075 100755 (executable)
--- a/src/Tizen.NUI.Components/Controls/RecyclerView/Item/RecyclerViewItem.Internal.cs
+++ b/src/Tizen.NUI.Components/Controls/RecyclerView/Item/RecyclerViewItem.Internal.cs
@@ -279,10 +279,18 @@ namespace Tizen.NUI.Components
         [EditorBrowsable(EditorBrowsableState.Never)]
         protected override void OnBindingContextChanged()
         {
-            foreach (View child in Children)
+            PropagateBindingContext(this);
+        }
+
+        private void PropagateBindingContext(View parent)
+        {
+            if (parent?.Children == null) return;
+            foreach (View child in parent.Children)
             {
                 SetChildInheritedBindingContext(child, BindingContext);
+                PropagateBindingContext(child);
             }
+
         }
 
         private void OnClickedInternal(ClickedEventArgs eventArgs)