Added ItemsPanelTemplate.

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

@@ -20,6 +20,7 @@ namespace Perspex.Markup.Xaml.Context
             mapping.Map<DataTemplate>(x => x.Content, new TemplateLoader());
             mapping.Map<FocusAdornerTemplate>(x => x.Content, new TemplateLoader());
             mapping.Map<TreeDataTemplate>(x => x.Content, new TemplateLoader());
+            mapping.Map<ItemsPanelTemplate>(x => x.Content, new TemplateLoader());
 
             var assembler = new ObjectAssembler(wiringContext, new TopDownValueContext(), objectAssemblerSettings);
             _objectAssembler = new TemplateHostingObjectAssembler(assembler, mapping);

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

@@ -242,6 +242,7 @@
     <Compile Include="Styling\StyleInclude.cs" />
     <Compile Include="Templates\FocusAdornerTemplate.cs" />
     <Compile Include="Templates\ControlTemplate.cs" />
+    <Compile Include="Templates\ItemsPanelTemplate.cs" />
     <Compile Include="Templates\MemberSelector.cs" />
     <Compile Include="Templates\TemplateLoader.cs" />
     <Compile Include="Templates\Template.cs" />

src/Markup/Perspex.Markup.Xaml/Templates/ItemsPanelTemplate.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using Perspex.Controls;
+using Perspex.Metadata;
+
+namespace Perspex.Markup.Xaml.Templates
+{
+    public class ItemsPanelTemplate : ITemplate<IPanel>
+    {
+        [Content]
+        public TemplateContent Content { get; set; }
+
+        public IPanel Build()
+        {
+            return (IPanel)Content.Load();
+        }
+    }
+}