收到的json自动映射到输入模型

Question

我有以下html表单

<input type="hidden" name="JsonCustomers" data-bind="value: ko.toJSON(customers)" />
<input type="hidden" name="JsonMaterials" data-bind="value: ko.toJSON(materials)" />
<button type="submit" class="btn btn-sm btn-primary">Submit</button>

和输入模型类

public class SubmitViewModel
{
    public string JsonCustomers { get; set; }
    public string JsonMaterials { get; set; }
}

控制器动作

[HttpPost]
public IActionResult Submit(SubmitViewModel model)
{
    throw new NotImplementedException();
}

是否可以将Json自动映射到类似这样的内容？

public class SubmitViewModel
    {
        public IEnumerable<InputCustomer> Customers { get; set; }
        public IEnumerable<InputMaterial> Materials { get; set; }
    }

我想跳过从Json到集合的转换步骤，并且理想情况下将数据注释与ModelState.IsValid函数一起使用。有什么想法吗？

更新

html

<input type="hidden" name="JsonCustomers" data-bind="value: ko.toJSON(customers)" />
<input type="hidden" name="JsonMaterials" data-bind="value: ko.toJSON(materials)" />
<input type="hidden" name="Customers" data-bind="value: ko.toJSON(customers)" />
<input type="hidden" name="Materials" data-bind="value: ko.toJSON(materials)" />

提交后

JsonCustomers 的内容

[{"isChecked":true,"name":"CompanyA","volume":"80","expectedDateOfOrder":"1.1.2018"},{"isChecked":true,"name":"CompanyB","volume":"100","expectedDateOfOrder":"2.2.2018"},{"isChecked":true,"name":"CompanyC","volume":"150","expectedDateOfOrder":"3.3.2018"}]

客户类别

public class Customer
    {
        public bool? IsChecked { get; set; }
        public string Name { get; set; }
        public string Volume { get; set; }
        public string ExpectedDateOfOrder { get; set; }
    }

问题是public IEnumerable<Customer> Customers集合的 Count = 0 ，我不知道为什么。

这是来自FormCollection

Answer 1

在@Alex Riabov的帮助下，并基于此讨论https://github.com/aspnet/Mvc/issues/5760

model.Customers = JsonConvert.DeserializeObject<IEnumerable<InputCustomer>>(model.JsonCustomers);

在控制器动作中起到了作用。