[英]Model binder in MVC question
I am getting the following Error The model item passed into the dictionary is of type 'MvcWebApplication.Models.Product' but this dictionary requires a model item of type 'MvcWebApplication.ViewModels.ProductCommonViewModel'. 我收到以下错误传递到字典中的模型项类型为'MvcWebApplication.Models.Product',但此字典需要类型为'MvcWebApplication.ViewModels.ProductCommonViewModel'的模型项。
Controller Code is as follows:- 控制器代码如下: -
public ActionResult Index([Bind(Prefix= "MvcWebApplication.ViewModels.ProductCommonViewModel")] Product product)
View Model class sent to the View:
namespace MvcWebApplication.ViewModels
{
public class ProductCommonViewModel
{
public Product Product { get; set; }
}
}
Model Binder : 型号粘合剂:
namespace MvcWebApplication.ModelBinders
{
public class ProductBinder : IModelBinder
{
#region IModelBinder Members
public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
HttpRequestBase fc = controllerContext.HttpContext.Request;
Product product = new Product();
LaunchSheet launchSheet = null; ;
ProductPricing productPricing = null;
product.LoanTypeId = Convert.ToInt32(fc["rblLoanType"]);
product.ProductTypeId = Convert.ToInt32(fc["ddlproductType"]);
etc...
return Product;
}
}
}
Product Class 产品类别
[ModelBinder(typeof(ProductBinder))]
public partial class Product : IRuleEntity
{
}
What am I doing wrong? 我究竟做错了什么?
It's not the binding which is broken. 这不是破坏的约束力。 The problem is that your strongly-typed view (aspx/ascx) requires a model of type MvcWebApplication.ViewModels.ProductCommonViewModel, but the action which renders it is passing a model of type MvcWebApplication.Models.Product.
问题是您的强类型视图(aspx / ascx)需要MvcWebApplication.ViewModels.ProductCommonViewModel类型的模型,但呈现它的操作是传递MvcWebApplication.Models.Product类型的模型。 Note that this has nothing to do with the code in your question;
请注意,这与您问题中的代码无关; the bug is in the "return View(model)" line elsewhere.
该bug位于其他地方的“返回视图(模型)”行中。
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