c# - 私有(private)类中的公共(public)字段 : "Field [FieldName] is never assigned to, and will always have its default value null"

Question

我有一个如下所示的私有(private)类(class):

private class PocoUserWithResourceId
{
    public USER User;
    public string ResourceId;
}

我用这个类做事(在同一个封装公共(public)类中)，比如:

var uQuery = from u in db.USERS.All()
select new PocoUserWithResourceId {User = u, ResourceId = arv.Resource_Id};

我收到警告:

Field 'PocoUserWithResourceId.ResourceId' is never assigned to, and will always have its default value null

我错过了什么？我在我的 LINQ to SQL 代码中分配值。

Answer 1

Is it just because I'm assigning property values during the declaration that the compiler doesn't see the fact that I'm using them?

不，那只是因为您要分配 field值，而不是 property值(value)观……

您可以在 2 种良好做法之间进行选择:
- 使用构造器
- 使用访问器(属性)