[NUI][Xaml] Fix issue of call SetBinding in c# code

diff --git a/src/Tizen.NUI/src/public/XamlBinding/BindableObject.cs b/src/Tizen.NUI/src/public/XamlBinding/BindableObject.cs
index 90b709b..bc28a62 100755 (executable)
--- a/src/Tizen.NUI/src/public/XamlBinding/BindableObject.cs
+++ b/src/Tizen.NUI/src/public/XamlBinding/BindableObject.cs
@@ -342,7 +342,7 @@ namespace Tizen.NUI.Binding
             if (property == null)
                 throw new ArgumentNullException(nameof(property));
 
-            if (true == isCreateByXaml)
+            if (true == IsBinded)
             {
                 if (property.IsReadOnly)
                     throw new InvalidOperationException(string.Format("The BindableProperty \"{0}\" is readonly.", property.PropertyName));