C#: Reference Assembly with same namespace

Question

THAT'S NOT A DUPLICATE It doesn't work with an alias

How can I reference an assembly with the same Namespace?

This is DLL1:

namespace ClassLibrary1
{
    public class Class1
    {
        public void Test()
        {
            Console.WriteLine("Test 1");
        }
    }
}

And this is DLL2 that references DLL1:

namespace ClassLibrary1
{
    public class Class1
    {
        public void Test()
        {
            new ClassLibrary1.Class1().Test(); //Should call Test() in DLL1
            Console.WriteLine("Test 2");
        }
    }
}

Obviously this will not work as expected. I already tried to set a different alias for the reference (DLL2 -> DLL1). Visual Studio seems to ignore the alias not matter what I do.

It doesn't work with an alias

myAlias::ClassLibrary1.Class1() is NOT WORKING Visual Studio (the compiler) ignores the alias. If I build and start my solution I get an endless loop.

You actually declare the same function twice here - don't think you can do that and have both assemblies loaded in the same domain at once. — 500 - Internal Server Error, Sep 17 '19 at 11:05
@500-InternalServerError If they're different versions of the same assembly, you are right. But if they're two separate assemblies that just happen to have the same namespace and type, that's exactly what assembly aliases are for. — Luaan, Sep 17 '19 at 11:09
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score 2 · Answer 1 · answered Sep 17 '19 at 11:08

You need to specify the alias explicitly when refering to the type, e.g. new myAlias::ClassLibrary1.Class1(). You can also use a using alias to do something like using AnotherClass1 = myAlias::ClassLibrary1.Class1; for convenience.

Of course, if possible, you want to avoid having this problem in the first place. Choose namespace and type names to avoid collisions, if you have control over either assembly.

C#: Reference Assembly with same namespace

1 Answers1