Thanks sefstrat, but with Reflection can I access to the values of the collection or only to the caracteristics of the type ?

cls71 

Thanks sefstrat, but with Reflection can I access to the values of the collection or only to the caracteristics of the type ?

You can access private members with reflection..

see this link for an example of one way to do it:
CodeProject: Dynamic Code Generation vs Reflection. Free source code and programming help