A little problem defining a variable

Hi all,

I'm facing a little problem when defining a variable.

My project has two ContainerControls, each of them representing 
graphically two objects very equivalent but not totally identical.

In my code, I have to define a variable representing only one of these 
objects, but I don't know, when defining it, what object.

Here is my problem: How to define a variable I don't know the type 
(Object1 or Object2), based on class ContainerControl?

I tried to define it as ContainerControl, but can't assign it later the 
type Object1 or Object2.

I tried to define it as Object1, but can't redefine it as Object2 is needed.

I'm sure the solution is obvious, but can't figure it out.

TIA for your help.

-- 
Jean-Luc Arnaud




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