Query for an Interface from a Object

[Kiran]

Hi,

I was wondering if there is any method that I can override on my Object
which will be called when somewhere try's to Query for an interface from my
object. for e.g.

IMyInterface x = myObject as IMyInterface ;

will there be any method that will be called in myObject which can be used
to change the default behavior of this QueryInterface?

Regards
Kiran

 

[Scott Allen]

Hi Kiran:

No, I do not believe so.

The closest one could get is to create a user defined conversion, but
it is a compiler error to create a user defined conversion to an
interface, so the following code is illegal:

interface IBar
{
void DoBar();
}

class Foo : IBar
{
public static explicit operator IBar(Foo f)
{
Console.WriteLine("Foo:perator_IBar");
}

public void DoBar()
{
Console.Write("Foo:oBar");
}
}


HTH,