嵌套的 BeginCollectionItem | BeginCollectionItem

本文介绍了嵌套的 BeginCollectionItem的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在使用 Steve Sanderson 的 BeginCollectionItem 方法来添加动态内容.当我在第一级做这件事时，一切正常.但是，当尝试在另一个 BeginCollectionItem 中实现意味着一个 BeginCollectionItem 的嵌套集合时，它似乎不起作用.

我的模型如下:

公共类订单{[钥匙][隐藏输入]公共 int id { 获取；放;}[Display(Name = "订单号")]公共字符串编号 { 获取；放;}...[Display(Name = "付款方式")]公共列表<PaymentMethod>支付方法{得到；放;}...}公共类支付方法{公共 MethodOfPayment 方法 { 获取；放;}公共抄送抄送{得到；放;}公共现金现金{得到;放;}公共 TT tt { 得到；放;}}公开课TT{[钥匙]公共 int id { 获取；放;}[必需(ErrorMessage ={0} 是必需的.")][Display(Name = "总金额")]公双?total_value { 得到；放;}...[显示(名称=转移")]公共列表<传输>转移{得到;放;}}公开课转学{[钥匙]公共 int id { 获取；放;}[显示(名称=付款")]公共 int payment_id { 获取；放;}[必需(ErrorMessage ={0} 是必需的.")][显示(名称 =SWIFT")]公共字符串 swift { 获取；放;}[必需(ErrorMessage ={0} 是必需的.")][Display(Name = "转账金额")]公双?transfer_amount { 得到;放;}[必需(ErrorMessage ={0} 是必需的.")][Display(Name = "Date Transfer")]公共日期时间 transfer_date { 获取；放;}...}

现在我有一个订单，它可以有多种付款方式，如果其中一种付款方式是 TT(电传转账)，则可能涉及多次转账.在一个订单中实现多种付款方式作为集合有效，但是当我尝试在 TT 内实现多次转账时，这些转账都没有传递给控制器.

这是我的观点:

@model prj.Models.Model.Order@using (Html.BeginForm("Create")){@Html.ValidationSummary(true, "创建失败.请更正错误并重试.")[email protected](m => m.number, new { id = "txtnumber" })...<div id="editorPaymentRows">@foreach(Model.payment_methods 中的 var 付款){@Html.Partial("_NewPayment", 付款)}

@using prj.Helpers@model prj.Models.Model.Transfer...<div class="editTransferRow">//使用(Html.BeginCollectionItem("transfers"))@using (Html.BeginCollectionItem("tt.transfers")){...<div class="editor-label">@Html.LabelFor(m => m.swift)

public class Order { [Key] [HiddenInput] public int id { get; set; } [Display(Name = "Order number")] public string number { get; set; } ... [Display(Name = "Payment method")] public List<PaymentMethod> payment_methods { get; set; } ... } public class PaymentMethod { public MethodOfPayment method { get; set; } public CC cc { get; set; } public CASH cash { get; set; } public TT tt { get; set; } } public class TT { [Key] public int id { get; set; } [Required(ErrorMessage = "{0} is required.")] [Display(Name = "Total amount")] public double? total_value { get; set; } ... [Display(Name = "Transfers")] public List<Transfer> transfers { get; set; } } public class Transfer { [Key] public int id { get; set; } [Display(Name = "Payment")] public int payment_id { get; set; } [Required(ErrorMessage = "{0} is required.")] [Display(Name = "SWIFT")] public string swift { get; set; } [Required(ErrorMessage = "{0} is required.")] [Display(Name = "Amount transferred")] public double? transfer_amount { get; set; } [Required(ErrorMessage = "{0} is required.")] [Display(Name = "Date transferred")] public DateTime transfer_date { get; set; } ... }

@model prj.Models.Model.Order @using (Html.BeginForm("Create")){ @Html.ValidationSummary(true, "Creation was unsuccessful. Please correct the errors and try again.") ... @Html.TextBoxFor(m => m.number, new { id = "txtnumber" }) ... <div id="editorPaymentRows"> @foreach (var payment in Model.payment_methods) { @Html.Partial("_NewPayment", payment) } </div> }

@using prj.Helpers @model prj.Models.Model.PaymentMethod <div class="editPaymentRow"> @using (Html.BeginCollectionItem("payment_methods")) { ... <div class="editor-label"> @Html.LabelFor(m => m.tt.total_value)<req>*</req> </div> <div class="editor-field"> @Html.TextBoxFor(m => m.tt.total_value) </div> ... <div id="editorTransferRows"> @if (Model.tt != null) { foreach (var transfer in Model.tt.transfers) { @Html.Partial("_NewTransfer", transfer) } } ... </div> } </div>

@using prj.Helpers @model prj.Models.Model.Transfer ... <div class="editTransferRow"> //using (Html.BeginCollectionItem("transfers")) @using (Html.BeginCollectionItem("tt.transfers")) { ... <div class="editor-label"> @Html.LabelFor(m => m.swift)<req>*</req> </div> <div class="editor-field"> @Html.TextBoxFor(m => m.swift, new { @class = "t_swift" }) </div> ... <div class="editor-label"> @Html.LabelFor(m => m.transfer_amount)<req>*</req> </div> <div class="editor-field"> @Html.TextBoxFor(m => m.transfer_amount, new { @class = "t_transfer_amount" }) </div> ... } </div>