传递一个关联数组使用JSON：期待在控制器哪种类型？ [英] Passing an associative array using json: which type to expect in the controller?

问题描述

在客户端我有一个关联数组，其中我店GUID - INT对。
我使用JSON数组传递到服务器：

On the client side I have an associative array where I store "Guid" - "int" pairs. I pass the array to the server by using json:

  $.ajax({
      url: methodUrl,
      type: 'POST',
      async: false,
      data: { values: items },
      dataType: 'json',
      success: function (data) {
          //...
      }
  });

我试图通过这个样子的对象（从Chrome中的调试器拍摄）：

The object I try to pass looks like this(taken from Chrome debugger):

  items: Object
  44f871e0-daee-4e1b-94c3-76d633a87634: 1
  698ce237-3e05-4f80-bb0d-de948c39cd96: 1

在控制器我有一个方法

  public ActionResult Method(Dictionary<Guid, int> values)
  {

  } 

然而，属性值仍然为空。只需在控制器的所有客户端和列表GUID的列表正常工作。
我怀疑，我应该选择另一种类型的控制器，而不是字典值。
我也试图加入传统：真正的！没有成功Ajax请求，但是

However, property values remains null. With just a list of Guids on the client side and List in the controller everything works fine. I suspect that I should choose another type for values in the controller, not Dictionary. I also tried adding "traditional: true" to the ajax request, however with no success.

任何建议表示赞赏。

推荐答案

这是我使用POST命令时做的：

This is what I do when using a POST command:

var data = {
   values: items
}

var obj = $.toJSON(data);

$.ajax({
      url: methodUrl,
      type: 'POST',
      async: false,
      data: obj,
      dataType: 'json',
      success: function (data) {
          //...
      }
  });

这应该通过正确发送到您的控制器，你不应该使用Dictionary对象，你应匹配从客户端对象到服务器端。我会使用，有一个的Guid 和 INT 作为它的属性，并使用自定义对象 - 。 NET将匹配两间。话虽这么说，这是完全合理的使用字典，但是这是个人喜好。

This should send through to your Controller properly and you shouldn't have to use a Dictionary object, you should match objects up from client side to server side. I'd use a custom object that has a Guid and a int as properties in it, and use that - .NET will match the two up. That being said, it's perfectly reasonable to use a Dictionary, but that's personal preference.

即

public CustomObject 
{
    public Guid MyGuid { get; set; }
    public int MyNumber { get; set; }
}

public ActionResult Method(List<CustomObject> values)
{

} 

通过多个参数：

items.SecondNumber = yourVariable; 
// In reality, you'd have a loop around your items and set this SecondNumber.

var data = {
    values: items
}

var obj = $.toJSON(data);


public CustomObject 
{
     public Guid MyGuid { get; set; }
     public int MyNumber { get; set; }
     public int SecondNumber { get; set; } // This is why we use CustomObject
}

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