自定义模型绑定

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public class GC_ModelBindcs : IModelBinder     {         public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)         {             List<Model> model = (List<Model>)bindingContext.Model ?? new List<Model>();             // string str = bindingContext.ValueProvider.GetValue("arrMachine[0][status]").AttemptedValue;             int count = 0;             if (controllerContext.HttpContext.Request.Form.AllKeys.Length > 0)             {                 count = (controllerContext.HttpContext.Request.Form.AllKeys.Length - 1) / 2;             }             for (int i = 0; i < count; i++)             {                 Model m = new Model();                 string id_key = bindingContext.ModelName + "[" + i + "]" + "[id]";                 string status_key = bindingContext.ModelName + "[" + i + "]" + "[status]";                 m.id = int.Parse(bindingContext.ValueProvider.GetValue(id_key).AttemptedValue);                 m.status = bool.Parse(bindingContext.ValueProvider.GetValue(status_key).AttemptedValue);                 model.Add(m);             }             return model;         }     }   MVC后台：    public ActionResult Index_Post(int groupId, [ModelBinder(typeof(GC_ModelBindcs))]List<Model> arrMachine)         {                           return View();         }