diff --git a/src/Tizen.NUI/src/internal/Interop/Interop.ControlDevel.cs b/src/Tizen.NUI/src/internal/Interop/Interop.ControlDevel.cs
index 07c3da8c8e9..f002d0ab7c8 100755
--- a/src/Tizen.NUI/src/internal/Interop/Interop.ControlDevel.cs
+++ b/src/Tizen.NUI/src/internal/Interop/Interop.ControlDevel.cs
@@ -531,6 +531,9 @@ private AccessibilityDelegate()
 
             [DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_Accessibility_SetAccessibilityDelegate")]
             public static extern IntPtr DaliAccessibilitySetAccessibilityDelegate(IntPtr arg1_accessibilityDelegate, uint arg2_accessibilityDelegateSize);
+
+            [DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_Accessibility_DetachAccessibleObject")]
+            public static extern void DaliAccessibilityDetachAccessibleObject(HandleRef arg1_control);
         }
     }
 }
diff --git a/src/Tizen.NUI/src/public/BaseComponents/ViewAccessibility.cs b/src/Tizen.NUI/src/public/BaseComponents/ViewAccessibility.cs
index 1776e7c7499..41dbd50850d 100755
--- a/src/Tizen.NUI/src/public/BaseComponents/ViewAccessibility.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/ViewAccessibility.cs
@@ -377,6 +377,9 @@ protected override void Dispose(bool disposing)
 
             internalName = null;
 
+            Interop.ControlDevel.DaliAccessibilityDetachAccessibleObject(SwigCPtr);
+            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
+
             if (disposing == false)
             {
                 if (IsNativeHandleInvalid() || SwigCMemOwn == false)
diff --git a/src/Tizen.NUI/src/public/BaseComponents/ViewAccessibilityWrappers.cs b/src/Tizen.NUI/src/public/BaseComponents/ViewAccessibilityWrappers.cs
index 5404598dd24..6b48d1ce160 100644
--- a/src/Tizen.NUI/src/public/BaseComponents/ViewAccessibilityWrappers.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/ViewAccessibilityWrappers.cs
@@ -53,7 +53,7 @@ private static View GetViewFromRefObject(IntPtr refObjectPtr)
 
             if (view is null)
             {
-                NUILog.Error($"RefObject 0x{refObjectPtr:x} is not a View");
+                throw new ArgumentException($"RefObject 0x{refObjectPtr:x} is not a View", nameof(refObjectPtr));
             }
 
             return view;
@@ -70,9 +70,7 @@ private static T GetInterfaceFromRefObject<T>(IntPtr refObjectPtr)
                 return atspiInterface;
             }
 
-            NUILog.Error($"RefObject 0x{refObjectPtr:x} is not a {typeof(T).FullName}");
-
-            return default(T);
+            throw new ArgumentException($"RefObject 0x{refObjectPtr:x} is not a {typeof(T).FullName}", nameof(refObjectPtr));
         }
 
         private static IntPtr DuplicateString(string value)
@@ -113,8 +111,6 @@ private static void InitializeAccessibilityDelegateAccessibleInterface()
         private static ulong AccessibilityCalculateStatesWrapper(IntPtr self, ulong initialStates)
         {
             View view = GetViewFromRefObject(self);
-            if (view == null)
-                return 0UL;
 
             ulong bitMask = 0UL;