Class 具有IEnumerable字段的ASP.NET核心MVC post模型

我试图发布带有几个隐藏字段的模型（基本上保存用户输入）

此视图的模型：

public class LoanModel
{
    public LoanCalendarDTO LoanCalendar { get; set; }
    public EnterLoanParams LoanParams { get; set; }
}

我尝试发回的模型：

public class EnterLoanParams
{
    [Required]
    [DataType(DataType.Currency)]
    public double TotalLoanAmount { get; set; }

    [Required]
    [RegularExpression(@"([0-9]{0,2}(,{0,1}([0-9]{0,2})))", ErrorMessage = "Please enter in format as xx,xx")]
    public string Rate { get; set; }

    [Required]
    [RegularExpression(@"([0-9]{0,2})", ErrorMessage = "2 digits ")]
    public int YearsToPay { get; set; }

    [Required] [DataType(DataType.Date)] public DateTime Start { get; set; }
    public List<DecreaseModel> Decreases { get; set; } = new List<DecreaseModel>();
}

在视图中，我将它们显示为：

@model Front.Models.LoanModel

@{
    ViewBag.Title = "title";
    Layout = "_Layout";
}
<form method="post" asp-controller="Home" id="form">
    <input class="form-control" name="TotalLoanAmount" type="number" asp-for="LoanParams.TotalLoanAmount" hidden/>
    <input class="form-control" name="Rate" type="text" asp-for="LoanParams.Rate" hidden/>
    <input class="form-control"  name="YearsToPay" type="text" asp-for="LoanParams.YearsToPay" hidden/>
    <input class="form-control" name="Start" type="date" asp-for="LoanParams.Start" hidden/>

    @for (int index = 0; index < Model.LoanParams.Decreases.Count; index++)
          {
              @Html.HiddenFor(m => @Model.LoanParams.Decreases[index].Amount)
              @Html.HiddenFor(m => @Model.LoanParams.Decreases[index].Start)
              @Html.HiddenFor(m => @Model.LoanParams.Decreases[index].End)
              @Html.HiddenFor(m => @Model.LoanParams.Decreases[index].DecreaseType)
              @Html.HiddenFor(m => @Model.LoanParams.Decreases[index].ID)
          }

    <button class="btn col-12 btn-success align-content-center btn-lg"
            asp-action="Index" asp-controller="Home" type="submit">Return Back</button>
</form>

但在帖子中，我收到了一张空名单：

相关链接：

编辑：视图的工作代码：

 @for (int index = 0; index < Model.LoanParams.Decreases.Count; index++)
          {
              <input class="form-control" name="Decreases[@index].Amount" type="number"
                     asp-for="LoanParams.Decreases[index].Amount" hidden/>
              <input class="form-control" name="Decreases[@index].DecreaseType" type="text" 
                     asp-for="LoanParams.Decreases[index].DecreaseType" hidden/>
              <input class="form-control" name="Decreases[@index].Start" type="date" 
                     asp-for="LoanParams.Decreases[index].Start" hidden/>
              <input class="form-control" name="Decreases[@index].End" type="date" 
                     asp-for="LoanParams.Decreases[index].End" hidden/>
              <input class="form-control" name="Decreases[@index].ID" 
                     asp-for="LoanParams.Decreases[index].ID" hidden/>           
          }

for（int index=0；index减少的

隐藏字段的
名称
属性具有
LoanParams.
前缀，这意味着它们将希望绑定到名为
LoanParams
的模型

您需要使
名称
减少[index]。{Prop}
（就像您对其他隐藏字段所做的那样）。
您可以像

[HttpPost]
public IActionResult Index(EnterLoanParams loan)
{
    return View(loan);
}

 @for (int index = 0; index < Model.LoanParams.Decreases.Count; index++)
          {
              <input class="form-control" name="Decreases[@index].Amount" type="number"
                     asp-for="LoanParams.Decreases[index].Amount" hidden/>
              <input class="form-control" name="Decreases[@index].DecreaseType" type="text" 
                     asp-for="LoanParams.Decreases[index].DecreaseType" hidden/>
              <input class="form-control" name="Decreases[@index].Start" type="date" 
                     asp-for="LoanParams.Decreases[index].Start" hidden/>
              <input class="form-control" name="Decreases[@index].End" type="date" 
                     asp-for="LoanParams.Decreases[index].End" hidden/>
              <input class="form-control" name="Decreases[@index].ID" 
                     asp-for="LoanParams.Decreases[index].ID" hidden/>           
          }