c# - Use alias in another file

Question

Is it possible to use an alias defined in one file throughout an assembly?

For eg. in Foo.cs I have

using IO = System.IO;
namespace Foo
{}

How can I use the alias "IO" in FooBar.cs

namespace Foo.Bar
{}

Answer 1

According to MSDN

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

So the answer is No. You cannot define an alias in one file and use it throughout assembly