[NUI] Use 'Container GetParent() for derived class' instead of Parent.

diff --git a/src/Tizen.NUI/src/public/BaseComponents/ViewPublicMethods.cs b/src/Tizen.NUI/src/public/BaseComponents/ViewPublicMethods.cs
index 63f5397..b4dbbae 100755 (executable)
--- a/src/Tizen.NUI/src/public/BaseComponents/ViewPublicMethods.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/ViewPublicMethods.cs
@@ -181,7 +181,7 @@ namespace Tizen.NUI.BaseComponents
             if (child == null || child.GetParent() == null) // Early out if child null.
                 return;
 
-            if (child.Parent != this)
+            if (child.GetParent() != this)
             {
                 throw new System.InvalidOperationException("You have deleted a view that is not a child of this view.");
             }