widgetService.GetAllByPage(filterContext.HttpContext.RequestServices, page).Each(widget =>
{
  if (widget != null)
  {
    IWidgetPartDriver partDriver = widget.CreateServiceInstance(filterContext.HttpContext.RequestServices);
    WidgetViewModelPart part = partDriver.Display(widget, filterContext);
    lock (layout.ZoneWidgets)
    {
      if (layout.ZoneWidgets.ContainsKey(part.Widget.ZoneID))
      {
        layout.ZoneWidgets[part.Widget.ZoneID].TryAdd(part);
      }
      else
      {
        layout.ZoneWidgets.Add(part.Widget.ZoneID, new WidgetCollection { part });
      }
    }
    partDriver.Dispose();
  }
});

foreach (var widgetPart in Model.ZoneWidgets[zoneId].OrderBy(m => m.Widget.Position).ThenBy(m => m.Widget.WidgetName))
{
  <div style="@widgetPart.Widget.CustomStyle">
    <div class="widget @widgetPart.Widget.CustomClass">
      @if (widgetPart.Widget.Title.IsNotNullAndWhiteSpace())
      {
        <div class="panel panel-default">
          <div class="panel-heading">
            @widgetPart.Widget.Title
          </div>
          <div class="panel-body">
            @Html.DisPlayWidget(widgetPart)
          </div>
        </div>
      }
      else
      {
        @Html.DisPlayWidget(widgetPart)
      }
    </div>
  </div>
}

public abstract class PluginBase : ResourceManager, IRouteRegister, IPluginStartup
{
  public abstract IEnumerable<RouteDescriptor> RegistRoute(); //注册该插件所需要的路由 可返回空
  public abstract IEnumerable<AdminMenu> AdminMenu(); //插件在后端提供的菜单 可返回空
  public abstract IEnumerable<PermissionDescriptor> RegistPermission(); //注册插件的权限
  public abstract IEnumerable<Type> WidgetServiceTypes(); //返回该插件中提供的所有组件的类型
  public abstract void ConfigureServices(IServiceCollection serviceCollection); //IOC 注册对应的接口与实现
  public virtual void InitPlug(); //初始化插件，在程序启动时调用该方法
}

public void ConfigureServices(IServiceCollection services)
{
  services.UseEasyFrameWork(Configuration).LoadEnablePlugins(plugin =>
  {
    var cmsPlugin = plugin as PluginBase;
    if (cmsPlugin != null)
    {
      cmsPlugin.InitPlug();
    }
  }, null);      
}

[ViewConfigure(typeof(HtmlWidgetMetaData)), Table("HtmlWidget")]
public class HtmlWidget : BasicWidget
{
  public string HTML { get; set; }
}
class HtmlWidgetMetaData : WidgetMetaData<HtmlWidget>
{
  protected override void ViewConfigure()
  {
    base.ViewConfigure();
    ViewConfig(m => m.HTML).AsTextArea().AddClass("html").Order(NextOrder());
  }
}

services.AddMvc(option =>
  {
    option.ModelMetadataDetailsProviders.Add(new DataAnnotationsMetadataProvider());
  })

public class HtmlWidgetService : WidgetService<HtmlWidget, CMSDbContext>
{
  public HtmlWidgetService(IWidgetBasePartService widgetService, IApplicationContext applicationContext)
    : base(widgetService, applicationContext)
  {
  }
 
  public override DbSet<HtmlWidget> CurrentDbSet
  {
    get
    {
      return DbContext.HtmlWidget;
    }
  }
}

public override WidgetViewModelPart Display(WidgetBase widget, ActionContext actionContext)
{
  //do some thing
  return widget.ToWidgetViewModelPart(new ViewModel());
}

public class PluginRazorViewEngineOptionsSetup : ConfigureOptions<RazorViewEngineOptions>
{
  public PluginRazorViewEngineOptionsSetup(IHostingEnvironment hostingEnvironment, IPluginLoader loader) :
    base(options => ConfigureRazor(options, hostingEnvironment, loader))
  {
 
  }
  private static void ConfigureRazor(RazorViewEngineOptions options, IHostingEnvironment hostingEnvironment, IPluginLoader loader)
  {
    if (hostingEnvironment.IsDevelopment())
    {
      options.FileProviders.Add(new DeveloperViewFileProvider());
    }
    loader.GetPluginAssemblies().Each(assembly =>
    {
      var reference = MetadataReference.CreateFromFile(assembly.Location);
      options.AdditionalCompilationReferences.Add(reference);        
    });
    loader.GetPlugins().Where(m => m.Enable && m.ID.IsNotNullAndWhiteSpace()).Each(m =>
    {
      var directory = new DirectoryInfo(m.RelativePath);
      if (hostingEnvironment.IsDevelopment())
      {
        options.ViewLocationFormats.Add($"/Porject.RootPath/{directory.Name}" + "/Views/{1}/{0}" + RazorViewEngine.ViewExtension);
        options.ViewLocationFormats.Add($"/Porject.RootPath/{directory.Name}" + "/Views/Shared/{0}" + RazorViewEngine.ViewExtension);
        options.ViewLocationFormats.Add($"/Porject.RootPath/{directory.Name}" + "/Views/{0}" + RazorViewEngine.ViewExtension);
      }
      else
      {
        options.ViewLocationFormats.Add($"/{Loader.PluginFolder}/{directory.Name}" + "/Views/{1}/{0}" + RazorViewEngine.ViewExtension);
        options.ViewLocationFormats.Add($"/{Loader.PluginFolder}/{directory.Name}" + "/Views/Shared/{0}" + RazorViewEngine.ViewExtension);
        options.ViewLocationFormats.Add($"/{Loader.PluginFolder}/{directory.Name}" + "/Views/{0}" + RazorViewEngine.ViewExtension);
      }
    });
    options.ViewLocationFormats.Add("/Views/{0}" + RazorViewEngine.ViewExtension);
  }
}

public class EntityFrameWorkConfigure : IOnConfiguring
{
  public void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
  {
    optionsBuilder.UseSqlServer(Easy.Builder.Configuration.GetSection("ConnectionStrings")["DefaultConnection"]);
  }
}

class EntityFrameWorkModelCreating : IOnModelCreating
{
  public void OnModelCreating(ModelBuilder modelBuilder)
  {
    modelBuilder.Entity<LayoutHtml>().Ignore(m => m.Description).Ignore(m => m.Status).Ignore(m => m.Title);
  }
}