MVC：複雜數組模型綁定失敗

Question

我被困在這一個，有人可以解釋爲什麼行不綁定？

我試過用JSON.stringify和各種組合提交。

我現在通過單元測試運行它，它仍然沒有約束力。

var formCollection = new NameValueCollection 
{ 
{ "PurchaseOrders[0][Lines][0][Part]", "ABD33-360-2" }, 
{ "PurchaseOrders[0][Lines][0][PartDescription]", "CARRIAGE ASSEMBLY (MOVEABLE)" }, 
{ "PurchaseOrders[0][Lines][0][PartIss]", "C" }, 
{ "PurchaseOrders[0][Lines][0][Price]", "1060.06" }, 
{ "PurchaseOrders[0][Lines][0][PriceBreaks]", "null" }, 
{ "PurchaseOrders[0][Lines][0][Number]", "5" }, 
{ "PurchaseOrders[0][Lines][0][LeadTime]", "0" }, 
{ "PurchaseOrders[0][Lines][0][Unit]", "EACH" }, 
{ "PurchaseOrders[0][Narrative][0]", "a" }, 
{ "PurchaseOrders[0][QualityNarrative][]", "a" }, 
{ "PurchaseOrders[0][Agent]", "11" }, 
{ "PurchaseOrders[0][COSITE]", "0" }, 
{ "PurchaseOrders[0][TotalVAT]", "0" }, 
{ "PurchaseOrders[0][VATNo]", "null" }, 
}; 

var valueProvider = new NameValueCollectionValueProvider(formCollection, null); 
var metadata = ModelMetadataProviders.Current.GetMetadataForType(null, typeof(PreDelivery)); 
var bindingContext = new ModelBindingContext { 
    ModelName = "", 
    ValueProvider = valueProvider, 
    ModelMetadata = metadata 
}; 
var controllerContext = new ControllerContext(); 
var sut = new DefaultModelBinder(); 

// act  
PreDelivery PD = (PreDelivery)sut.BindModel(controllerContext, bindingContext); 

Console.WriteLine(string.Format("PreDelivery {0}", PD != null)); 
Console.WriteLine(string.Format("PD.PurchaseOrders {0}", PD.PurchaseOrders != null)); 
Console.WriteLine(string.Format("PD.PurchaseOrders[0] {0}", PD.PurchaseOrders[0] != null)); 
Console.WriteLine(string.Format("PD.PurchaseOrders[0].Lines {0}", PD.PurchaseOrders[0].Lines != null)); 
Console.WriteLine(string.Format("PD.PurchaseOrders[0].Lines {0}", PD.PurchaseOrders[0].Lines.Count.ToString())); 

類 - （大量簡化了這個帖子）：

public class Order : IOrder { 
     public string Agent { get; set; } 

     public string Buyer { get; set; } 
     public string Carrier { get; set; } 
     public string Contact { get; set; } 
     public string Currency { get; set; } 
     public string CusSupCode { get; set; } 
     public string CustomerName { get; set; } 
     public string CusSupRef { get; set; } 
     public string CusSupAddr { get; set; } 
     public int iDelAddr { get; set; } 
     public string DelAddr { get; set; } 
     public string InvAddr { get; set; } 
     public eInvoiceType InvoiceType { get; set; } 
     public List<Line> Lines { get; set; } 
     public string[] Narrative { get; set; } 
     public string[] QualityNarrative { get; set; } 
     public string Release { get; set; } 
     public string Region { get; set; } 

     public class Line { 
      public string CusSupPart { get; set; } 
      public decimal DiscountPC { get; set; } 
      public string DP { get; set; } 
      public bool IsFOC { get; set; } 
      public bool IsScheduled { get; set; } 
      public string OrderRef { get; set; } 
      public int OrderRefLine { get; set; } 
      public bool POA { get; set; } 
      public string Part { get; set; } 
      public string PartDescription { get; set; } 
      public string PartIss { get; set; } 
      public decimal Price { get; set; } 
      public string[] Narrative { get; set; } 
      public int Number { get; set; } 
      public int LeadTime { get; set; } 
      public string Unit { get; set; } 
      public DateTime? ReqDate { get; set; } 
      public DateTime SchdDate { get; set; } 
      public decimal UnitConv { get; set; } 
     } 

     public class HistoryEntry { 
      public string Narrative { get; set; } 
      public DateTime Timestamp { get; set; } 
     }  
    } 

Answer 1

的陣列結合預期的格式是Property[0].Key但你使用Property[0][Key]。

試試這個：

{ "PurchaseOrders[0].Lines[0].Part", "ABD33-360-2" }, 
{ "PurchaseOrders[0].Lines[0].PartDescription", "CARRIAGE ASSEMBLY (MOVEABLE)" }, 
{ ... }