MVC扩展Url.Action方法解决复杂对象参数问题

1:问题描述

　　@Url.Action("Index", "Home", new { Key = "Key", Val = new { Name = "TypeDescriptor" } })

　　 期望结果: /Home/Index?Key=Key&Name=TypeDescriptor

　　 实际结果: /Home/Index?Key=Key

2.解决方案

　　

         /// <summary>
         /// 递归算法
         /// </summary>
         /// <param name="dictionary">dictionary</param>
         /// <param name="values">values</param>
         public static void GetProperties(RouteValueDictionary dictionary, object values)
         {
             foreach (PropertyDescriptor descriptor in TypeDescriptor.GetProperties(values))
             {
                 object obj = descriptor.GetValue(values);
                 if (obj != null)
                 {
                     Type type = obj.GetType();
                     if (!type.IsValueType && type != typeof(string))
                     {
                         GetProperties(dictionary, obj);
                     }
                     if (type.IsValueType || type == typeof(string))
                     {
                         if (dictionary.ContainsKey(descriptor.Name))
                         {
                             dictionary[descriptor.Name] = obj;
                         }
                         else
                         {
                             dictionary.Add(descriptor.Name, obj);
                         }
                     }
                 }
             }
         }

递归算法获取参数列表

         /// <summary>
         /// Action
         /// </summary>
         /// <param name="urlHelper">urlHelper</param>
         /// <param name="actionName">actionName</param>
         /// <param name="controllerName">controllerName</param>
         /// <param name="routeValues">routeValues</param>
         /// <returns>string</returns>
         public static string Action(this UrlHelper urlHelper, string actionName, string controllerName, object routeValues)
         {
             RouteValueDictionary dictionary = new RouteValueDictionary();
             GetProperties(dictionary, routeValues);
             return UrlHelper.GenerateUrl(null, actionName, controllerName, dictionary, urlHelper.RouteCollection, urlHelper.RequestContext, true);
         }

重写Action