public ActionResult GetModule()
 {
     PluginBll _PluginBll = new PluginBll();
     List<PluginEntity> pluginEntities = _PluginBll.GetPlugins(0,0,"").ToList();
     RightBll rightBll = new RightBll();
     List<int> list = rightBll.GetCategory();
     if (list != null)
         pluginEntities.RemoveAll(m => list.Contains(m.Id));
     StringBuilder sb = new StringBuilder();
     foreach (var item in pluginEntities)
     {
         sb.AppendFormat("<option value = '{0}'>", item.Id);
         sb.Append(item.Name);
         sb.Append("</option>");
     }
     return Content(sb.ToString());
 }