[Mono-dev] Constructor implementation obligation via interface?

[Ympostor]

I have a question about C# 2.0:

If I want the compiler to show an error if a class A does not implement 
the function void B(), I can make an interface that contains this method 
and make class A inherit from that interface.

But, how can I do it if I want the compiler to show an error if class A 
doesn't have an empty constructor. Can this be controlled statically?

Thanks in advance.

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