Proof of concept for OmniXAML issue #57.

src/Markup/Perspex.Markup.Xaml/Context/NameScopeWrapper.cs

@@ -0,0 +1,30 @@
+// Copyright (c) The Perspex Project. All rights reserved.
+// Licensed under the MIT license. See licence.md file in the project root for full license information.
+
+namespace Perspex.Markup.Xaml.Context
+{
+    internal class NameScopeWrapper : OmniXaml.INameScope
+    {
+        private Perspex.INameScope _inner;
+
+        public NameScopeWrapper(Perspex.INameScope inner)
+        {
+            _inner = inner;
+        }
+
+        public object Find(string name)
+        {
+            return _inner.Find(name);
+        }
+
+        public void Register(string name, object scopedElement)
+        {
+            _inner.Register(name, scopedElement);
+        }
+
+        public void Unregister(string name)
+        {
+            _inner.Unregister(name);
+        }
+    }
+}

src/Markup/Perspex.Markup.Xaml/Context/PerspexXamlType.cs

@@ -18,6 +18,28 @@ namespace Perspex.Markup.Xaml.Context
         {
         }
 
+        public override OmniXaml.INameScope GetNamescope(object instance)
+        {
+            var result = this.UnderlyingType as OmniXaml.INameScope;
+
+            if (result == null)
+            {
+                var visual = instance as Visual;
+
+                if (visual != null)
+                {
+                    var perspexNs = (instance as Perspex.INameScope) ?? NameScope.GetNameScope(visual);
+
+                    if (perspexNs != null)
+                    {
+                        result = new NameScopeWrapper(perspexNs);
+                    }
+                }
+            }
+
+            return result;
+        }
+
         protected override XamlMember LookupMember(string name)
         {
             return new PerspexXamlMember(name, this, TypeRepository, FeatureProvider);

src/Markup/Perspex.Markup.Xaml/OmniXAML

@@ -1 +1 @@
-Subproject commit 3582fa46d30fd5f747390c3c7296c4c7c9e5be3e
+Subproject commit e900876696103a752ef6e28ec9d884090ef14f92

src/Markup/Perspex.Markup.Xaml/Perspex.Markup.Xaml.csproj

@@ -38,6 +38,7 @@
     <Compile Include="..\..\Shared\SharedAssemblyInfo.cs">
       <Link>Properties\SharedAssemblyInfo.cs</Link>
     </Compile>
+    <Compile Include="Context\NameScopeWrapper.cs" />
     <Compile Include="Converters\PerspexListTypeConverter.cs" />
     <Compile Include="Converters\RelativeRectTypeConverter.cs" />
     <Compile Include="Data\IXamlBinding.cs" />