Casting and templates...

[Oriane]

Hi there

The following code doesn't complie:
__________________________________________________ ______
public interface ITree
{
ITree GetFather ();
List<ITreeGetChildren();
}
public class A : ITree
{
protected A m_father;
protected List<Am_ListChildren;

public ITree GetFather() { return m_father; }
public List<ITreeGetChildren() { return m_ListChildren; }
}
__________________________________________________ ______

since "Error 2 Cannot implicitly convert type
'System.Collections.Generic.List<XMLTreeview.A>' to
'System.Collections.Generic.List<XMLTreeview.ITree >'

However A inherits from ITree, so the cast should be working no...
Is there any workaround ?

Oriane

[Alex Meleta]

Hi Oriane,

Classes use polymorphism till they are not generic types :)
So, you can use something like this "new List<ITree>(m_ListChildren.ToArray());"
to convert the values.

Regards, Alex
[TechBlog] http://devkids.blogspot.com
O......
Opublic class A : ITree
O{
Oprotected A m_father;
Oprotected List<Am_ListChildren;
Opublic ITree GetFather() { return m_father; }
Opublic List<ITreeGetChildren() { return m_ListChildren; }
O} .....
OHowever A inherits from ITree, so the cast should be working no... Is
Othere any workaround ?

[Oriane]

"Alex Meleta" <am*****@gmail.coma ecrit dans le message de
news:15**************************@msnews.microsoft .com...

Hi Oriane,

Classes use polymorphism till they are not generic types :)

Good point :-(

So, you can use something like this "new
List<ITree>(m_ListChildren.ToArray());" to convert the values.

Set and match !!

Thanks !!