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Thread: [RESOLVED] What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

  1. Sep 27th, 2005, 09:39 AM #1
    MetalKid
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    Resolved [RESOLVED] What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

    I can't remember what keyword is needed to force people to call the parent's New. Any help would be appreciated!
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  2. Sep 27th, 2005, 12:18 PM #2
    MetalKid
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    Re: What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

    Or am I just crazy and there is nothing out there that does this?
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  3. Sep 27th, 2005, 12:20 PM #3
    techgnome
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    Re: What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

    Um, in the child class constructor, it would be mybase.new....

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  4. Sep 27th, 2005, 01:13 PM #4
    Edneeis
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    Re: What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

    If the base class has no default constuctor (parameterless) then the subclass is required to call the parameterized constructor.
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  6. Sep 27th, 2005, 02:00 PM #5
    MetalKid
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    Re: What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

    Well, this is what I'm asking. My base class has a Sub New(), and I have code in it that I want to run no matter what class inherits it. Now, I know the child class can call MyBase.New() in its constructor, but VB.NET doesn't force this. Is there a way to force the child class to always call MyBase.New() when it inherits from that base class?
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  7. Sep 27th, 2005, 02:04 PM #6
    MetalKid
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    Re: What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

    Nevermind... It looks like MyBase.New() automatically gets called due to the Inherits keyword. I guess programmers don't need to explicitly call that function in order for it to run.
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  8. Sep 27th, 2005, 02:06 PM #7
    techgnome
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    Re: [RESOLVED] What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

    I dunno... when ever I create a new form, I always see a MyBase.New() called in there.... even though it Inherits Windows.Form.....

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  9. Sep 27th, 2005, 02:08 PM #8
    MetalKid
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    Re: [RESOLVED] What Keyword is needed in a base class to FORCE child classes to call Mybase.New()?

    Well, I think C# requires that, but VB.NET doesn't. Of course, I'm also using VB .Net 2005 August CTP...
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