unable to pas derived List<>

Posted by Tarscher on Stack Overflow See other posts from Stack Overflow or by Tarscher
Published on 2010-03-11T08:48:09Z Indexed on 2010/03/15 9:39 UTC
Read the original article Hit count: 137

Filed under:

c#

|

generics

|

casting

|

inheritance

Hi all,

I have

class A
{}

class B : A
{}

I also have a method that expects a List parameter

void AMethod(List<A> parameter)
{}

Why can't I

List<B> bs = new List<B>();
AMethod(bs);

And secondly what is the most elegant way to make this work?

regards

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