Generic derivance and embedded classes

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  • none
    #1

    Generic derivance and embedded classes

    Hello.
    Could anybody tell me why the following code:

    public abstract class Derived : Base<Derived.De rivedClass>
    {
    protected sealed class DerivedClass : Base<Derived.De rivedClass>.Bas eClass
    {
    }
    }

    public abstract class Base<Twhere T : BaseClass
    {
    protected abstract class BaseClass
    {
    }
    }

    gives me a <Derived.Derive dClass>.BaseCla ss' is inaccessible due to its
    protection level(CS0122) error?

    I don't get why I have a problem with protection level...
    Tags: None
    • Dave Sexton
      #2
      Re: Generic derivance and embedded classes

      Hi,

      BaseClass is a protected member of Base<T>, which means that it may only be
      accessed by Base<Titself or derived Types.

      DerivedClass does not derive from Base<Tand therefore cannot access
      BaseClass.
      Base<Derived.De rivedClass>.Bas eClass
      This does not mean DerivedClass is deriving from Base<T>.

      --
      Dave Sexton

      "none" <""lcid-fire\"@(none)"w rote in message
      news:%230NpHAFA HHA.4740@TK2MSF TNGP03.phx.gbl. ..
      Hello.
      Could anybody tell me why the following code:
      >
      public abstract class Derived : Base<Derived.De rivedClass>
      {
      protected sealed class DerivedClass : Base<Derived.De rivedClass>.Bas eClass
      {
      }
      }
      >
      public abstract class Base<Twhere T : BaseClass
      {
      protected abstract class BaseClass
      {
      }
      }
      >
      gives me a <Derived.Derive dClass>.BaseCla ss' is inaccessible due to its
      protection level(CS0122) error?
      >
      I don't get why I have a problem with protection level...

        Comment

        • none
          #3
          Re: Generic derivance and embedded classes

          Dave Sexton wrote:
          Hi,
          >
          BaseClass is a protected member of Base<T>, which means that it may only be
          accessed by Base<Titself or derived Types.
          >
          DerivedClass does not derive from Base<Tand therefore cannot access
          BaseClass.
          I thought, that since DerivedClass in embedded in Derived it can
          automaticly access all embedded classes of Base since Derived is derived
          from Base.

          So I tried making the DerivedClass and BaseClass public and now I get
          some other errors which I have to figure out ;)

          Thanks for your clarification.

            Comment

            • Dave Sexton
              #4
              Re: Generic derivance and embedded classes

              Hi,

              Do you want to explain what you're trying to accomplish?

              Maybe someone will be able to give you some pointers and supply working code.

              --
              Dave Sexton

              "none" <""lcid-fire\"@(none)"w rote in message
              news:OjyPW1LAHH A.2328@TK2MSFTN GP02.phx.gbl...
              Dave Sexton wrote:
              >Hi,
              >>
              >BaseClass is a protected member of Base<T>, which means that it may only be
              >accessed by Base<Titself or derived Types.
              >>
              >DerivedClass does not derive from Base<Tand therefore cannot access
              >BaseClass.
              I thought, that since DerivedClass in embedded in Derived it can
              automaticly access all embedded classes of Base since Derived is derived
              from Base.
              >
              So I tried making the DerivedClass and BaseClass public and now I get
              some other errors which I have to figure out ;)
              >
              Thanks for your clarification.

                Comment

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