无法通过嵌套类型访问外部类型的非静态成员

问题描述：

我有错误

无法通过以下方式访问外部类型Project.Neuro"的非静态成员嵌套类型Project.Neuro.Net"

Cannot access a non-static member of outer type 'Project.Neuro' via nested type 'Project.Neuro.Net'

像这样的代码(简化):

with code like this (simplified):

class Neuro
{
    public class Net
    {
        public void SomeMethod()
        {
            int x = OtherMethod(); // error is here
        }
    }

    public int OtherMethod() // its outside Neuro.Net class
    {
        return 123;  
    }
}

我可以将有问题的方法移至 Neuro.Net 类，但我需要外部使用此方法.

I can move problematic method to Neuro.Net class, but I need this method outside.

我是一个客观的编程新手.

Im kind of objective programming newbie.

提前致谢.

答

问题在于嵌套类不是派生类，所以外层类中的方法是不是继承.

The problem is that nested classes are not derived classes, so the methods in the outer class are not inherited.

有些选项是

使方法static:

class Neuro
{
    public class Net
    {
        public void SomeMethod()
        {
            int x = Neuro.OtherMethod(); 
        }
    }

    public static int OtherMethod() 
    {
        return 123;  
    }
}

使用继承而不是嵌套类:

Use inheritance instead of nesting classes:

public class Neuro  // Neuro has to be public in order to have a public class inherit from it.
{
    public static int OtherMethod() 
    {
        return 123;  
    }
}

public class Net : Neuro
{
    public void SomeMethod()
    {
        int x = OtherMethod(); 
    }
}

创建一个Neuro的实例:

class Neuro
{
    public class Net
    {
        public void SomeMethod()
        {
            Neuro n = new Neuro();
            int x = n.OtherMethod(); 
        }
    }

    public int OtherMethod() 
    {
        return 123;  
    }
}

无法通过嵌套类型访问外部类型的非静态成员

相关推荐