vb.net - Why this sub is valid? Why i can pass each Type (String, Interface, Int) to a sub without compiler error as parameter -

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public class mainwindow      private sub mainwindow_loaded(sender object, e routedeventargs) handles me.loaded          me.x(1)     end sub      public sub x(byval x string)         messagebox.show(x)     end sub  end class

if want interface in sub x example public sub x(byval iperson) accept every type without error.

in vs2013 under debug/debugging/projects , solutions/vb defaults option turn option strict on.


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