Access 'using' directive from different files

Question

Consider the next solution structure:

File 1:

using MyClass = System.Collections.Generic.List<int>;

namespace NamespaceA
{
    class  A
    {
        MyClass a;
    }
}

namespace NamespaceB
{
    class B
    {
        MyClass b;
    }
}

File 2:

namespace NamespaceC
{
    class C
    {
        MyClass c; // <-- The type or namespace name 'MyClass' could not be found 
    }
}

How can I access to MyClass definition from File2? I tried to move it into NamespaceA and use using MyClass = NamespaceA.MyClass in File2, but had no success. My goal is to define complicate type in one place, not in all files where it is used.

Answer 1

This is called a "using alias directive."

Per MSDN:

The scope of a using directive is limited to the file in which it appears.

There's no way do what you're trying to do; you'll have to add the alias to each file in which you wish to use it.