无法从JSON创建数组 [英] Cant create an array from JSON

问题描述

我正在尝试根据从Facebook Connect Graph API获得的JSON创建对象数组.

这是我在课堂上的属性:

I am trying to create an array of my object from JSON that I get from the Facebook Connect Graph API.

Here are my properties in my class:

public string ID { get; set; }
public string Name { get; set; }

我的代码:

My Code:

List<User> users = new List<User>();
Newtonsoft.Json.JsonConvert.PopulateObject(s, users);

JSON:

The JSON:

{"data":[{"name":"Friends Name","id":"000000"},{"name":"Other Friend","id":"000000"}]

我得到的错误是:

无法将JSON对象填充到"System.Collections.Generic.List`1 [FacebookConnectAPI.User]"类型上.

The error I get is:

Cannot populate JSON object onto type ''System.Collections.Generic.List`1[FacebookConnectAPI.User]''.

Any help will be great, thanks!

推荐答案

您会发现，还有另一种方法PopulateObjec t带有类型为JsonSerializerSettings的第三个参数.该信息可以在这里找到: http://james.newtonking.com/projects/json/help/ [ ^ ].您的类型User具有大写的名称，而您的Json字符串包含小写的名称.

干杯！

—MRB

You''ll find that there is another method PopulateObject that takes a third parameters of type JsonSerializerSettings. The information can be found here: http://james.newtonking.com/projects/json/help/[^]. Your type User has capitalized names whereas you Json string contains the names in lower case.

Cheers!

—MRB

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