VB.NET 将 DataTable 转换为 JSON 时出现问题
好的，我正在尝试使用 JavaScriptSerializer 来处理 this 代码。然而，当它到达最后一行时，它会崩溃；
Dim json As New String(sr.Serialize(dt))
我收到此错误消息；
检测到循环引用 序列化类型的对象时 'System.Reflection.Module'。
我真的很感激任何有助于解决这个问题的见解。
Ok so I'm trying to use the JavaScriptSerializer to work with this code. However it crashes when it reaches the last line;
Dim json As New String(sr.Serialize(dt))
I get this error message;
A circular reference was detected
while serializing an object of type
'System.Reflection.Module'.
I would really appreciate any insights that could help solve this problem.
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
循环引用意味着序列化对象将导致无限循环。
例如，如果您尝试序列化具有对对象“B”的 1 对 1 引用的对象“A”。
声明一个包含要使用 JSON 序列化的数据的类来解决此问题。
Circular reference means that serialising the object would result in an infinite loop.
For example if you would try to serialize object "A" having a 1 to 1 reference to object "B".
Declare a class containg the data you want to serialize with JSON to solve this issue.
正如 hkda150 已经说过的，您可以使用专门为序列化而定制的类。
此外，这将使您能够序列化外键值，而不是序列化相关的完整对象。因此，如果您要序列化对象 a，该对象具有 B 类型的属性 a.SomeB，那么您通常会希望 a.someB 的 ID 出现在您的网页中。显然，我的了解不够，无法判断这是否与您的特定用例相关。
顺便说一句，如果您发现自己在“业务对象”和“用于序列化的对象”之间进行了大量映射，您可能需要考虑使用 AutoMapper。
As hkda150 has already said, you could use a class specifically tailored for being serialized.
This will furthermore enable you to have foreign key values serialized instead of having related full objects serialized. Thus, if you are serializing object a which has a property a.SomeB of type B, then you will often want the ID of a.someB to be present in your webpage. Obviously I don't know enough to be able to say if this is relevant in your specific use case.
BTW, If you find yourself doing a lot of mapping between "business objects" and "objects meant for serialization" you may want to consider using AutoMapper.