Re: Overriding newbie question.

From: Richard Blewett [DevelopMentor] (richardb_at_NOSPAMdevelop.com)
Date: 12/05/04 

To: microsoft.public.dotnet.languages.csharp
Date: Sun, 05 Dec 2004 03:41:04 -0800

The base and derived class method signatures for method B must match exactly so:

 class Foo
 {
    public virtual int MyMethod(double d)
    {
    }
 }

 class Bar : Foo
 {
   public override int MyMethod(double d)
   {
     // this one will not always get called
   }
 }

 The other fundemental thing is this will only work if the method is being called on a derived class object. So for the above example:

 Foo f = new Foo();
 f.MyMethod(2.0); // this will call Foo.MyMethod

 f = new Bar();
 f.MyMethod(2.0); // this will call Bar.MyMethod

 Regards

 Richard Blewett - DevelopMentor
 http://www.dotnetconsult.co.uk/weblog
 http://www.dotnetconsult.co.uk

   Hi,
 A control has
 privtae void MethodA()
 {
 
 //etc
 
 MethodB();
 {
 
 // NO CODE, THE PROGRAM WHICH WILL INHERIT THIS CONTROL WILL PROVIDE THE CODE.
 }
 
 I hope this make sense, I have tried using virtual and override without success the control always calls its own methodB
 
 any help/thoughts will be appericated.
 

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