From 17d0172ace7f8070bfe11a8f9898bc158ad940a6 Mon Sep 17 00:00:00 2001
From: Maya Zhecheva <maya.zhecheva@progress.com>
Date: Mon, 1 Aug 2016 16:21:26 +0300
Subject: [PATCH] Element that is not an instance of a View should not be added
 to its parent.

---
 tns-core-modules/ui/core/view-common.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tns-core-modules/ui/core/view-common.ts b/tns-core-modules/ui/core/view-common.ts
index 7f3063a67..ec99314d9 100644
--- a/tns-core-modules/ui/core/view-common.ts
+++ b/tns-core-modules/ui/core/view-common.ts
@@ -988,7 +988,10 @@ export class View extends ProxyObject implements definition.View {
         if (!view) {
             throw new Error("Expecting a valid View instance.");
         }
-
+        if(!(view instanceof View))
+        {
+            throw new Error(view + " is not a valid View instance.");
+        }
         if (view._parent) {
             throw new Error("View already has a parent. View: " + view + " Parent: " + view._parent);
         }