问题描述
我已经得到了下面这段JSON的:
I've got the following piece of JSON:
[{
"name": "numToRetrieve",
"value": "3",
"label": "Number of items to retrieve:",
"items": {
"1": "1",
"3": "3",
"5": "5"
},
"rules": {
"range": "1-2"
}
},
{
"name": "showFoo",
"value": "on",
"label": "Show foo?"
},
{
"name": "title",
"value": "Foo",
"label": "Foo:"
}]
All in one的行版本(适用于字符串):
All in one line version (suitable for a string literal):
[{\"name\":\"numToRetrieve\",\"value\":\"3\",\"label\":\"Number of items to retrieve:\",\"items\":{\"1\":\"1\",\"3\":\"3\",\"5\":\"5\"},\"rules\":{\"range\":\"1-2\"}},{\"name\":\"showFoo\",\"value\":\"on\",\"label\":\"Show foo?\"},{\"name\":\"title\",\"value\":\"Foo\",\"label\":\"Foo:\"}]
在上面的例子中,名称
,值
和标签
是必需的,但项目
和规则
都是可选的。
In the above example, name
, value
, and label
are required but items
and rules
are optional.
下面是我在尝试反序列化到类:
Here's the class I'm trying to deserialize into:
using System.Collections;
using System.Collections.Generic;
using System.Runtime.Serialization;
namespace foofoo
{
[DataContract]
public sealed class FooDef
{
[DataMember(Name = "name", IsRequired = true)]
public string Name { get; set; }
[DataMember(Name = "value", IsRequired = true)]
public string Value { get; set; }
[DataMember(Name = "label", IsRequired = true)]
public string Label { get; set; }
[DataMember(Name = "items", IsRequired = false)]
public Dictionary<string, string> Items { get; set; }
[DataMember(Name = "rules", IsRequired = false)]
public Dictionary<string, string> Rules { get; set; }
}
}
这里的code我用反序列化:
Here's the code I use to deserialize:
var json = new DataContractJsonSerializer(typeof(List<FooDef>));
var bar = "[{\"name\":\"numToRetrieve\",\"value\":\"3\",\"label\":\"Number of items to retrieve:\",\"items\":{\"1\":\"1\",\"3\":\"3\",\"5\":\"5\"},\"rules\":{\"range\":\"1-2\"}},{\"name\":\"showFoo\",\"value\":\"on\",\"label\":\"Show foo?\"},{\"name\":\"title\",\"value\":\"Foo\",\"label\":\"Foo:\"}]";
var stream = new MemoryStream(Encoding.UTF8.GetBytes(bar));
var foo = json.ReadObject(stream);
stream.Close();
一切进展相当不错,只是项目
和规则
是空的第一个 FooDef
通过。我已经在阳光下想尽一切办法试图让他们填充:自定义类,的NameValueCollection
, KeyValuePair&LT;字符串,字符串&GT;
,列表
这两个后者的,和所有其他的集合,似乎适用。
Everything goes reasonably well except that items
and rules
are empty for the first FooDef
pass. I have tried everything under the sun to try and get them populated: custom classes, NameValueCollection
, KeyValuePair<string, string>
, List
of both of the latter, and every other collection that seemed to apply.
问题,在我看来,是项目
和规则
下的关键部分是开放式的。也就是说,它并不总是会被称为范围
或 3
。任何意见或想法?
The problem, as I see it, is that the key piece under items
and rules
is open-ended. That is, it's not always going to be called range
or 3
. Any advice or ideas?
推荐答案
恕我直言,没有办法给你反序列化使用DataContractJsonSerializer提供到.NET类的JSON字符串。
IMHO there is no way to deserialize the JSON string you provided into a .NET class using DataContractJsonSerializer.
问题来自于路的字典。你可以使用另一种串行如(我强烈推荐)或的JavaScriptSerializer (我认为这是有利于DataContractJsonSerializer的pcated德$ P $,但它会为您的方案工作)。
The problem comes from the way DataContractJsonSerializer serializes dictionaries. You could use an alternative serializer such as Json.NET (which I strongly recommend) or JavaScriptSerializer (I think it was deprecated in favor of DataContractJsonSerializer but it will work for your scenario).
您还可以阅读 。
文件:
Documentation: Serializing Collections - Json.NET
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