c# - 如何获取 CallerMember 的类型名称

Question

我上了这门课

public class fooBase
{
    public List<MethodsWithCustAttribute> MethodsList;
    public bool fooMethod([CallerMemberName]string membername =""))
    {
        //This returns a value depending of type and method 
    } 
    public void GetMethods()
    {
        // Here populate MethodsList using reflection
    }
}

还有这个属性类

// This attribute get from a database some things, then fooMethod check this attribute members 
public class CustomAttribute
{
    public string fullMethodPath;
    public bool someThing ; 
    public bool CustomAttribute([CallerMemberName]string membername ="")
    {
        fullMethodPath = **DerivedType** + membername 
        //  I need here to get the type of membername parent. 
        //  Here I want to get CustClass, not fooBase

    }
}

然后我有这个

public class CustClass : fooBase
{
     [CustomAttribute()]
     public string method1()
     {
         if (fooMethod())
         {
             ....
         }
     }
}

我需要 CallerMember 的类型名称，是否有类似 [CallerMemberName] 的东西来获取调用者的类所有者的类型？

Answer 1

这并非万无一失，但 .NET 的惯例是每个文件有一个类型，并将文件命名为与该类型相同的名称。我们的工具也倾向于强制执行此约定，即 Resharper 和 Visual Studio。

因此从文件路径推断类型名应该是合理的。

public class MyClass
{
  public void MyMethod([CallerFilePath]string callerFilePath = null, [CallerMemberName]string callerMemberName = null)
  {
    var callerTypeName = Path.GetFileNameWithoutExtension(callerFilePath);
    Console.WriteLine(callerTypeName);
    Console.WriteLine(callerMemberName);
  }
}