How can you mark code as “not for future use”

Question

I often end up in a situation where I want to discourage other developers from continuing to use a method or class. For example, let\'s say I have two library methods \"A\" and

Answer 1

Use ObsoleteAttribute.

[ObsoleteAttribute("This method is obsolete. Call NewMethod instead.", false)] 
public string SomeObsoleteMethod()
{
   // ...
}

The last argument (IsError) will emit a compilation error if set to true, otherwise a warning will be given. You can disable the warnings by using #pragma 612, 618

EDIT:

Ok, fine, I relent. The solution you want appears to be:

/// 

/// Please don't use
/// 
public string SomeObsoleteMethod()
{
   // ...
}

No compiler support at all.