A singleton in C # is "unavailable" if not in the same namespace?

Question

I tried to implement a singleton class as follows (I am using VS2008 SP1):

namespace firstNamespace
{
   class SingletonClass
   {
      private SingletonClass() {}

      public static readonly SingletonClass Instance = new SingletonClass();
   }
}

When I want to access it from a class in another namespace (it seems that this is a problem, it works in the same namespace), for example:

namespace secondNamespace
{
   ...
   firstNamespace.SingletonClass inst = firstNamespace.SingletonClass.Instance;
   ...
}

I get a compiler error:

error CS0122: 'firstNamespace.SingletonClass' is inaccessible due to its protection level

Does anyone have any ideas how to solve this?

Thank you very much in advance!

Answer 1

You are missing a keyword publicfrom your class definition.

Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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