我具有以下C#类型定义:
public class GraphicSubmission
{
public string Title { get; set; }
public string Description { get; set; }
public string Byline { get; set; }
public string BylineTitleId { get; set; }
public string BylineTitleDescription { get; set; }
public string Category { get; set; }
public List<GraphicBinary> GraphicBinaries;
public GraphicSubmission()
{
GraphicBinaries = new List<GraphicBinary>();
}
}
其中包括这些对象的嵌套列表:
public class GraphicBinary
{
public SubmittedImageType ImageType { get; set; }
public string OriginalFilename { get; set; }
public string ItemId { get; set; }
public string RecordId { get; set; }
public int RecordSequenceNumber { get; set; }
}
我有以下Controller方法,将GraphicSubmission对象作为其参数之一:
[HttpPost]
public JsonResult Graphic(PhotoAction actionType, bool hid, GraphicSubmission graphicModel)
当我从AngularJS站点使用HTTP POST正文中的以下JSON调用控制器方法时:
{
"Title": "AP Poll Stay at Home Protest Approval",
"Description": "A new UChicago Divinity School/AP-NORC poll finds that two-thirds of Democrats and about half of Republicans disapprove of recent protests of stay at home orders.;",
"Byline": "F. Strauss",
"BylineTitleDescription": "STAFF",
"BylineTitleId": "STF",
"Category": "a",
"GraphicBinaries": [
{
"ImageType": "PrintGraphicAI",
"ItemId": "dd142b48fe7c4cc6bf9b42c9c9402e7d",
"RecordId": "dd142b48fe7c4cc6bf9b42c9c9402e7d",
"RecordSequenceNumber": 0,
"OriginalFilename": "ChicagoShootings.ai"
},
{
"ImageType": "PrintGraphicJPEG",
"ItemId": "ccce25ddc1cb45d898b09eb0d91fcecc",
"RecordId": "ccce25ddc1cb45d898b09eb0d91fcecc",
"RecordSequenceNumber": 0,
"OriginalFilename": "ChicagoShootings.jpg"
}
]
}
该方法已正确调用,但是GraphicSubmission对象的GraphicBinaries字段始终为空。
鉴于JSON,我希望它包含2个条目。
我的问题是要使ASP.Net正确反序列化嵌套的对象列表我需要做什么?
我看过这里的一些相关文章,例如:
Deserialize JSON array(or list) in C#
Passing JSON Object and List of Objects to ASP.Net Controller [duplicate]
Post JSON array to mvc controller
但是他们似乎都没有解决这个问题的钥匙。
正如评论所指出的那样,需要通过添加{get;来将GraphicSubmission类中的GraphicBinaries字段设为属性。组; }。
这里有一篇文章指出了区别: