How to bind Action parameters to Model in NopCommerce
This article will explain in detail how to bind Action parameters to Model in NopCommerce. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.
Action parameters in asp.net MVC are not only basic types, but also support entity parameters. So how does the data from the client be mapped or transformed into entity objects? Is through the entity binding class ModelBinder. Before requesting to convert to the Action method of background Controller, this series of classes capture the passed data, parse and transform it, and finally become entity class objects.
Before the system starts, the method Application_Start method in Global.asax.cs calls the following code to define the parameter conversion rules.
/ / model binders ModelBinders.Binders.Add (typeof (BaseNopModel), new NopModelBinder ())
NopModelBinder inherits DefaultModelBinder's entity binding class from the system, but seems to leave an interface instead of using it. It mainly inherits the methods of the parent class, with a slight change: the method BindModel adds binding support for NopModel.
Public override object BindModel (ControllerContext controllerContext, ModelBindingContext bindingContext) {var model = base.BindModel (controllerContext, bindingContext); if (model is BaseNopModel) ((BaseNopModel) model) .BindModel (controllerContext, bindingContext); return model;}
Method GetModelProperties has added a filtering method, but this method has not been enabled.
The class BaseNopModel is the base class for all Model and supports the storage of custom attributes. And there is a method BindModel bound to the parser, but no subclasses have been found to implement this method.
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