Obfuscation/Hiding C# dll code

Question

Good morning,

 

I am working on an C# application with Visual Studio 2017 and I have a question concerning the obfuscation process. 

 

See below an explanation of what I would like to do :

I have a C# solution which generates a .dll file. I use this .dll file inside another project with using as a reference. Then I have some questions :

- With Visual Studio, with using "Object browser", each classes and functions of the dll are visible to anyone ; then my question is how to hide those informations ? 

 

- Also, I have try to deassembly the .dll with a specific tool and I can see all the code ; then I would like to know how to hide the code. I have taken a look to the obfuscation process with Dotfuscator integrated directly in Visual but I need some help to use it because I didn't succeed to hide something.

 

Thank you in advance for any advice.