在 C# 中以字符串形式获取类的名称
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Get the name of a class as a string in C#
提问by Jared
Is there a way to take a class name and convert it to a string in C#?
有没有办法在 C# 中获取类名并将其转换为字符串？
As part of the Entity Framework, the .Include method takes in a dot-delimited list of strings to join on when performing a query. I have the class model of what I want to join, and for reasons of refactoring and future code maintenance, I want to be able to have compile-time safety when referencing this class.
作为实体框架的一部分，.Include 方法接受以点分隔的字符串列表，以在执行查询时加入。我有我想要加入的类模型，并且出于重构和未来代码维护的原因，我希望在引用此类时能够具有编译时安全性。
Thus, is there a way that I could do this:
因此，有没有一种方法可以做到这一点：
class Foo
{
}
tblBar.Include ( Foo.GetType().ToString() );
I don't think I can do GetType() without an instance. Any ideas?
我认为没有实例我不能做 GetType() 。有任何想法吗？
采纳答案by Craig Stuntz
Include requires a property name, not a class name. Hence, it's the name of the property you want, not the name of its type. You can get that with reflection.
Include 需要一个属性名，而不是一个类名。因此，它是您想要的属性的名称，而不是其类型的名称。 你可以通过反射得到它。
回答by Max Schmeling
You can't use .GetType()without an instance because GetTypeis a method.
.GetType()没有实例就不能使用，因为GetType是方法。
You can get the name from the type though like this:
您可以从类型中获取名称，如下所示：
typeof(Foo).Name
And as pointed out by Chris, if you need the assembly qualified name you can use
正如克里斯所指出的，如果您需要程序集限定名称，您可以使用
typeof(Foo).AssemblyQualifiedName
回答by Brian
typeof(Foo).ToString()
?
?
回答by Albino
You can use an DbSet<contact>instead of ObjectSet<contact>, so you can use lambda as a parameter, eg tblBar.Include(a => a.foo)
您可以使用DbSet<contact>代替ObjectSet<contact>，因此您可以使用 lambda 作为参数，例如tblBar.Include(a => a.foo)
回答by Glade Mellor
You could also do something like this:
你也可以做这样的事情：
Type CLASS = typeof(MyClass);
And then you can just access the name, namespace, etc.
然后你就可以访问名称、命名空间等。
string CLASS_NAME = CLASS.Name;
string NAMESPACE = CLASS.Namespace;
回答by Gustavo Mori
Another alternative using reflection, is to use the MethodBase class.
另一种使用反射的替代方法是使用 MethodBase 类。
In your example, you could add a static property (or method) that provides you with the info you want. Something like:
在您的示例中，您可以添加一个静态属性（或方法），为您提供所需的信息。就像是：
class Foo
{
public static string ClassName
{
get
{
return MethodBase.GetCurrentMethod().DeclaringType.Name;
}
}
}
Which would allow you to use it without generating an instance of the type:
这将允许您在不生成该类型的实例的情况下使用它：
tblBar.Include(Foo.ClassName);
Which at runtime will give you:
这在运行时会给你：
tblBar.Include("Foo");
