A dynamic Rehosted Workflow Designer for WF 4

using System;
using System.Windows;
using System.Windows.Controls;
using Microsoft.Practices.Prism.Modularity;
using Microsoft.Practices.Prism.Regions;
using Microsoft.Practices.Unity;

namespace Selen.WorkflowSaveModule
{
    public class TypeBasedSaveModule : IModule
    {
        private readonly IRegionManager _regionManager;
        private readonly object _dataContext;

        public TypeBasedSaveModule(IRegionManager regionManager, [Dependency("WorkflowSaveViewModel")]object dataContext)
        {
            this._regionManager = regionManager;
            this._dataContext = dataContext;
        }

        public void Initialize()
        {
            var viewdict = new ResourceDictionary
                               {
                                   Source =
                                       new Uri("/Selen.WorkflowSaveModule;component/MenuItems.xaml",
                                               UriKind.RelativeOrAbsolute)
                               };
            var item = (MenuItem)viewdict["saveItem"];
            item.DataContext = this._dataContext;
            this._regionManager.RegisterViewWithRegion("StorageRegion", () => item);
        }
    }
}